TXS0206-29YFPR [TI]
MMC, SD CARD, Memory Stick™ VOLTAGE-TRANSLATION TRANSCEIVER AND LDO VOLTAGE REGULATOR WITH ESD PROTECTION AND EMI FILTERING; MMC卡,SD卡,记忆棒™电压转换收发器和LDO稳压器具有ESD保护和EMI滤波型号: | TXS0206-29YFPR |
厂家: | TEXAS INSTRUMENTS |
描述: | MMC, SD CARD, Memory Stick™ VOLTAGE-TRANSLATION TRANSCEIVER AND LDO VOLTAGE REGULATOR WITH ESD PROTECTION AND EMI FILTERING |
文件: | 总23页 (文件大小:398K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
TXS0206-29
www.ti.com
SCES690 –DECEMBER 2009
MMC, SD CARD, Memory Stick™ VOLTAGE-TRANSLATION TRANSCEIVER AND LDO
VOLTAGE REGULATOR WITH ESD PROTECTION AND EMI FILTERING
1
FEATURES
•
Level Translator
•
•
ESD Protection Exceeds JESD 22 (A Port)
–
–
VCCA Range of 1.1 V to 3.6 V
–
–
2000-V Human-Body Model (A114-B)
1000-V Charged-Device Model (C101)
Fast Propagation Delay (4 ns Max When
Translating Between 1.8 V and 2.9 V)
±8-kV Contact Discharge IEC 61000-4-2 ESD
(B Port)
•
Low-Dropout (LDO) Regulator
–
–
–
–
200-mA LDO Regulator With Enable
2.9-V Output Voltage
3.05-V to 5.5-V Input Voltage Range
Very Low Dropout: 200 mV at 200 mA
YFP PACKAGE
(TOP VIEW)
TERMINAL ASSIGNMENTS
1
2
3
4
1 2
3
4
A
B
C
D
E
DAT2A
DAT3A
CMDA
DAT0A
DAT1A
VCCA
VBATT
GND
CLKA
CLK-f
WP/CD
VCCB O/P
GND
DAT2B
DAT3B
CMDB
DAT0B
DAT1B
A
B
C
D
E
CLKB
EN
DESCRIPTION/ORDERING INFORMATION
The TXS0206-29 is a complete solution for interfacing microprocessors with MultiMediaCards (MMCs), secure
digital (SD) cards, and Memory Stick™ cards. It is comprised of a high-speed level translator, a low-dropout
(LDO) voltage regulator, IEC level ESD protection, and EMI filtering circuitry.
The voltage-level translator has two supply voltage pins. VCCA can be operated over the full range of 1.1 V to
3.6 V. VCCB is set at 2.9 V and is supplied by an internal LDO. The integrated LDO accepts input voltages from
3.05V to as high as 5.5 V and outputs 2.9 V, 200 mA to the B-side circuitry and to the external memory card. The
TXS0206-29 enables system designers to easily interface low-voltage microprocessors to memory cards
operating at 2.9 V.
Memory card standards recommend high-ESD protection for devices that connect directly to the external memory
card. To meet this need, the TXS0206-29 incorporates ±8-kV Contact Discharge protection on the card side.
Since memory cards are widely used in mobile phones, PDAs, digital cameras, personal media players,
camcorders, set-top boxes, etc. Low static power consumption and small package size make the TXS0206-29 an
ideal choice for these applications. The TXS0206-29 is offered in a 20-bump wafer chip scale package (WCSP).
This package has dimensions of 1.96 mm × 1.56 mm, with a 0.4-mm ball pitch for effective board-space savings
ORDERING INFORMATION(1)
TA
–40°C to 85°C WCSP – YFP (Pb-free)
PACKAGE(2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING(3)
Tape and reel
TXS0206-29YFPR
_ _ _ 3 V 2
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
(3) The actual top-side marking has three preceding characters to denote year, month, and sequence code.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
TXS0206-29
SCES690 –DECEMBER 2009
www.ti.com
REFERENCE DESIGN
V
CCB
V
CCA
V
CCB
C3
C4
C1
0.1 μF
0.1 μF
0.1 μF
J1
U1A
U2
DAT2B
DAT3B
CMDB
0
1
A2
B3
D4
DAT2
DAT3
CMD
VSS1
VDD
VDDA
DAT0
DAT1
DAT2
DAT3
CMD
VCCA
VCCB O/P
D1
E1
A1
B1
C1
D2
E2
C2
DAT0B
DAT0A
DAT1A
DAT2A
DAT3A
CMDA
CLKA
CLK-f
GND
2
DAT0B
3
4
E4 DAT1B
A4 DAT2B
B4 DAT3B
DAT1B
DAT2B
DAT3B
5
CLKB
CLK
6
VSS2
DAT0
DAT1
DAT0B
DAT1B
7
8
C4 CMDB
CLK
CMDB
CLKB
9
CLKB
D3
WP/CD (Physical)
CD (Physical)
GND
CLKin
GND
10
11
12
13
CD
C3
GND
A3
WP/CD
GND
WP
WP/CD
WP (Physical)
Processor
SD/SDIO MMC
54794-0978
SD/SDIO
CardConnector
TXS0206-29
WP/CD
Figure 1. Interfacing With SD/SDIO Card
ESD – 8-kV Contact Discharge
B Side 2.9 V
ESD – 2 kV
1.8 V A Side
CLK
Feedback CLK
CMD
CLK
CMD
Data 0–3
Level-Shifter
Integrated
ASIP
Antenna
Pins 10, 11
CPU
Data 0–3
EN
MMC,
SD Card, or
MS Card
EMI Filter
WP, CD
WP, CD 1.8-V Pullup
Integrated PSU
2.9 V, 200 mA
WP, CD
Integrated Pullup/Pulldown Resistors
Figure 2. Typical Application Circuit
2
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TXS0206-29
www.ti.com
SCES690 –DECEMBER 2009
Table 1. LOGIC TABLE
EN
L
LDO
Disabled
Active
TRANSLATOR I/Os
Disabled, pulled to VCCA, VCCB O/P through R1 and R2
at 70kΩ pullup resistors respectively
H
Active
TERMINAL FUNCTIONS
TERMINAL
TYPE
DESCRIPTION
NO.
A1
NAME
DAT2A
VCCA
I/O
Data bit 2 connected to host. Referenced to VCCA. Includes R1 pullup resistor to VCCA (see Note A).
A-port supply voltage. VCCA powers all A-port I/Os and control inputs.
A2
Power
Connected to write protect on the mechanical connector. The WP pin has an internal 100-kΩ pullup
A3
A4
WP/CD
DAT2B
Output
I/O
resistor to VCCA
.
Data bit 2 connected to memory card. Referenced to VCCBO/P. Includes R2 pullup resistor to
VCCBO/P (see Note A).
B1
B2
B3
DAT3A
VBATT
I/O
Data bit 3 connected to host. Referenced to VCCA . Includes R1 pullup resistor to VCCA (see Note A).
LDO input voltage from Battery-Supply
Input
VCCB O/P
Output
LDO output voltage and B-port supply voltage. VCCBO/P powers all B-port I/Os.
Data bit 3 connected to memory card. Referenced to VCCBO/P. Includes R2 pullup resistor to
VCCBO/P (see Note A).
B4
C1
DAT3B
CMDA
GND
I/O
I/O
Command bit connected to host. Referenced to VCCA . Includes R1 pullup resistor to VCCA (see Note
A).
C2,
C3
Ground
Command bit connected to memory card. Referenced to VCCBO/P. Includes R2 pullup resistor to
VCCBO/P (see Note A).
C4
CMDB
I/O
D1
D2
D3
DAT0A
CLKA
CLKB
I/O
Data bit 0 connected to host. Referenced to VCCA . Includes R1 pullup resistor to VCCA (see Note A).
Input
Clock signal connected to host. Referenced to VCCA.
Output
Clock signal connected to memory card. Referenced to VCCBO/P.
Data bit 0 connected to memory card. Referenced to VCCBO/P. Includes R2 pullup resistor to
VCCBO/P (see Note A).
D4
DAT0B
I/O
E1
E2
DAT1A
CLK-f
I/O
Data bit 1 connected to host. Referenced to VCCA . Includes R1 pullup resistor to VCCA (see Note A).
Clock feedback to host for resynchronizing data to a processor. Leave unconnected if not used.
Enable/disable control. Pull EN low to place all outputs in Hi-Z state and to disable the LDO.
Output
E3
E4
EN
Input
I/O
Referenced to VCCA
.
Data bit 1 connected to memory card. Referenced to VCCBO/P. Includes R2 pullup resistor to
VCCBO/P (see Note A).
DAT1B
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SCES690 –DECEMBER 2009
www.ti.com
VCCA
EN
(see Note B)
VCCB
CLKA
CLKB
CLK-f
VCCA
VCCA
VCCA
VCCA
VCCA
VCCB
VCCB
VCCB
VCCB
VCCB
One-Shot
One-Shot
R1
(see Note A)
R2
(see Note A)
Translator
Gate Control
CMDA
CMDB
One-Shot
One-Shot
Translator
One-Shot
One-Shot
R1
(see Note A)
R2
(see Note A)
Translator
Gate Control
DAT0A
DAT0B
One-Shot
One-Shot
Translator
One-Shot
One-Shot
R1
(see Note A)
R2
(see Note A)
Translator
Gate Control
DAT1A
DAT1B
One-Shot
One-Shot
Translator
One-Shot
One-Shot
R2
(see Note A)
R1
(see Note A)
Translator
Gate Control
DAT2A
DAT2B
One-Shot
One-Shot
Translator
One-Shot
One-Shot
R1
(see Note A)
R2
(see Note A)
Translator
Gate Control
DAT3A
DAT3B
One-Shot
One-Shot
Translator
VCCA
100 kW
WP/CD
A. R1 and R2 resistor values are determined based upon the logic level applied to the A port or B port as follows:
R1 and R2 = 40 kΩ when a logic level low is applied to the A port or B port.
R1 and R2 = 4 kΩ when a logic level high is applied to the A port or B port.
R1 and R2 = 70 kΩ when the port is deselected (or in High-Z or 3-state).
B. EN controls all output buffers. When EN = low, all outputs are Hi-Z.
Figure 3. Logic Diagram
4
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TXS0206-29
www.ti.com
SCES690 –DECEMBER 2009
V
CCB
R7 R8 R9 R10 R11
HOST
CLK
CARD
R1
CLKB
R2
R4
R6
CMD
Data0
Data1
Data2
Data3
CMDB
DAT0B
DAT1B
DAT2B
DAT3B
R3
R5
GND
GND
RESISTORS
R1, R2, R3, R4, R5, R6
Tolerance
BIDIRECTIONAL ZENER DIODES
40 Ω
20ꢀ
Vbr min
14 V at 1 mA
<20 pF
Line capacitance
R7, R8, R9, R10, R11
Tolerance
40 kΩ
30ꢀ
Figure 4. ASIP Block Diagram
V
CCA
R
WP/CD
WP/CD
RESISTORS
R
100 kΩ
30%
WP/CD
Tolerance
Figure 5. WP/CD Pullup Resistor
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TXS0206-29
SCES690 –DECEMBER 2009
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ABSOLUTE MAXIMUM RATINGS(1)
Level Translator
over operating free-air temperature range (unless otherwise noted)
MIN
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
MAX UNIT
VCCA
Supply voltage range
Input voltage range
4.6
4.6
V
I/O ports (A port)
I/O ports (B port)
Control inputs
A port
VI
4.6
V
4.6
4.6
Voltage range applied to any output in the high-impedance or
power-off state
VO
VO
V
V
B port
4.6
A port
4.6
Voltage range applied to any output in the high or low state
B port
4.6
IIK
IOK
IO
Input clamp current
VI < 0
–50
–50
±50
±100
150
mA
mA
mA
mA
°C
Output clamp current
VO < 0
Continuous output current
Continuous current through VCCA or GND
Storage temperature range
Tstg
–65
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
THERMAL IMPEDANCE RATINGS
TYP
UNIT
θJA
Package thermal impedance(1)
117
°C/W
(1) The package thermal impedance is calculated in accordance with JESD 51-7.
ABSOLUTE MAXIMUM RATINGS(1)
LDO
over operating free-air temperature range (unless otherwise noted)
MIN
MAX UNIT
VIN
Input voltage range
2.3
6.5
4.6
V
V
VOUT
Output voltage range
–0.3
Peak output current
220
mA
Continuous total power dissipation
Junction temperature range
Storage temperature range
TBD mW
TJ
–55
–55
150
150
°C
°C
Tstg
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
6
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SCES690 –DECEMBER 2009
RECOMMENDED OPERATING CONDITIONS(1)
Level Translator
VCCA
VCCB
2.9 V
2.9 V
2.9 V
2.9 V
MIN
MAX
3.6
UNIT
VCCA
Supply voltage
1.1
V
1.1 V to 1.95 V
1.95 V to 3.6 V
1.1 V to 1.95 V
1.95 V to 3.6 V
1.1 V to 3.6 V
1.1 V to 1.95 V
1.95 V to 3.6 V
1.1 V to 1.95 V
1.95 V to 3.6 V
1.1 V to 3.6 V
VCCI – 0.2
VCCI
A-Port CMD and
DATA I/Os
VCCI – 0.4
VCCI
VIH
High-level input voltage
VCCI – 0.2
VCCI
V
B-Port and DATA
I/Os
VCCI – 0.4
VCCI
OE and CLKA
VCCI × 0.65
VCCI
0
0
0
0
0
0.15
A-Port CMD and
DATA I/Os
0.15
VIL
VO
IOH
Low-level input voltage
Output voltage
0.15
V
V
B-Port CMD and
DATA I/Os
0.15
OE and CLKA
Active state
3-state
VCCI × 0.35
0
VCCO
1.1 V to 1.3 V
1.4 V to 1.6 V
1.65 V to 1.95 V
2.3 V to 2.7 V
3 V to 3.6 V
–0.5
–1
–2
–4
–8
0.5
1
High-level output current (CLK-f output)
Low-level output current (CLK-f output)
2.9 V
2.9 V
mA
1.1 V to 1.3 V
1.4 V to 1.6 V
1.65 V to 1.95 V
2.3 V to 2.7 V
3 V to 3.6 V
IOL
2
mA
4
8
IOH
High-level output current (CLK output)
Low-level output current (CLK output)
Input transition rise or fall rate
2.9 V
2.9 V
–8
8
mA
mA
ns/V
°C
IOL
Δt/Δv
TA
5
Operating free-air temperature
–40
85
(1) All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. See the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
RECOMMENDED OPERATING CONDITIONS
LDO
MIN
200
1
MAX
UNIT
mA
μF
IOUT(PK)
COUT
TJ
Peak output current
Output capacitance
100
125
Operating junction temperature
–40
°C
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SCES690 –DECEMBER 2009
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MAX UNIT
V
ELECTRICAL CHARACTERISTICS
Level Translator
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
IOH = –100 μA
VCCA
1.1 V to 3.6 V
1.1 V
VCCBO/P
MIN
VCCA × 0.8
0.8
TYP(1)
IOH = –0.5 mA
IOH = –1 mA
IOH = –2 mA
IOH = –4 mA
IOH = –8 mA
1.4 V
1.05
A port
(CLK-f output)
1.65 V
2.3 V
1.2
VOH
2.9 V
1.75
3 V
2.3
A port
(DAT and CMD IOH = –20 μA
1.1 V to 3.6 V
VCCA × 0.8
outputs)
IOL = 100 μA
1.1 V to 3.6 V
1.1 V
VCCA × 0.8
IOL = 0.5 mA
0.35
0.35
0.45
0.55
0.7
IOL = 1 mA
IOL = 2 mA
IOL = 4 mA
IOL = 8 mA
IOL = 135 μA
IOL = 180 μA
1.4 V
A port
(CLK-f output)
2.9 V
V
V
1.65 V
2.3 V
VOL
3 V
0.4
0.4
A port
(DAT and CMD IOL = 220 μA
1.1 V to 3.6 V
2.9 V
0.4
outputs)
IOL = 300 μA
0.4
IOL = 400 μA
0.55
VCCBO/P ×
0.8
IOH = –100 μA
IOH = –8 mA
IOH = –20 μA
B port
(CLK output)
2.9 V
2.9 V
2.9 V
VOH
1.1 V to 3.6 V
1.1 V to 3.6 V
2.3
V
V
B port
(DAT output)
VCCBO/P ×
0.8
VCCBO/P ×
0.8
IOL = 100 μA
CLKB output
port
IOL = 8 mA
0.7
0.4
0.4
0.4
0.4
0.55
±1
IOL = 135 μA
IOL = 180 μA
VOL
B port
(DAT and CMD IOL = 220 μA
1.1 V to 3.6 V
2.9 V
V
outputs)
IOL = 300 μA
IOL = 400 μA
II
Control inputs
VI = VCCA or GND
1.1 V to 3.6 V
1.1 V to 3.6 V
1.1 V to 3.6 V
2.9 V
2.9 V
2.9 V
μA
μA
μA
ICCA
ICCB
VI = VCCI or GND,
VI = VCCI or GND,
IO = 0
IO = 0
6
5
A port
5.5
15
3.5
3
6.5
17.5
4.5
4
Cio
Ci
pF
pF
B port
Control inputs
Clock input
VI = VCCA or GND
(1) All typical values are at TA = 25°C.
8
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SCES690 –DECEMBER 2009
ELECTRICAL CHARACTERISTICS
LDO
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP(1)
VOUT + VDO
MAX
UNIT
VBATT
VOUT
Input voltage
5.5
V
Nominal TA = 25°C
All conditions
2.9
Output voltage
V
2.75
3.05
ΔVOUT
Output voltage tolerance
Dropout voltage
Nominal TA = 25°C
IOUT = 200 mA
IOUT = 0
±3
%
VDO
200
250
40
mV
IGND
Ground-pin current
IOUT < 100 mA
100 mA ≤ IOUT ≤ 200 mA
RL = 0 Ω
200
400
μA
IOUT(SC)
PSRR
tSTR
Short-circuit current
Power-supply rejection ratio
Start-up time
300
50
mA
dB
μs
f = 1 kHz
VIN = 3.05 V, VOUT = 2.9 V,
CNR = 0.01 μF, IOUT = 200 mA
f = 10 kHz
40
VOUT = 2.9 V, IOUT = 200 mA, COUT = 2.2 μF
200
(1) All typical values are at TA = 25°C.
TIMING REQUIREMENTS
over recommended operating free-air temperature range, VCCB = 2.9 V ± 5% (unless otherwise noted)
VCCA = 1.2 V
± 0.1 V
VCCA = 1.5 V
± 0.1 V
VCCA = 1.8 V
± 0.15 V
VCCA = 2.5 V VCCA = 3.3 V
± 0.2 V
± 0.3 V
UNIT
MIN
MAX MIN
MAX MIN
MAX
MIN MAX
MIN MAX
Push-pull driving
40
1
60
1
60
1
60
60
Command
Mbps
Open-drain driving
1
1
Data rate
Clock
Data
60
40
60
60
60
60
60
60
MHz
Mbps
ns
Push-pull driving
60
60
Push-pull driving
25
1
17
1
17
1
17
1
17
1
Command
Open-drain driving
μs
Pulse
tW
duration
Clock
Data
8.3
25
8.3
17
8.3
17
8.3
17
8.3
17
ns
Push-pull driving
ns
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SWITCHING CHARACTERISTICS
over recommended operating free-air temperature range, VCCB = 2.9 V ± 5% (unless otherwise noted)
VCCA
VCCA
VCCA
VCCA
VCCA
= 1.2 V
± 0.1 V
= 1.5 V
± 0.1 V
= 1.8 V
± 0.15 V
= 2.5 V
± 0.2 V
= 3.3 V
± 0.3 V
FROM
(INPUT) (OUTPUT)
TO
TEST
CONDITIONS
PARAMETER
UNIT
MIN MAX
MIN MAX
MIN
MAX
MIN MAX
MIN
MAX
Push-pull driving
10.8
6.1
4.6
5.5
3.7
3.8
4.1
Open-drain driving
(H-to-L)
3.2
71
10.6
2.7
83
6.6
2.4
89
2.1
98
4.4
2
CMDA
CMDB
CMDB
CMDA
Open-drain driving
(L-to-H)
175
12
180
6.8
7.3
201
5.2
6.4
249
4.1
5.7
101
233
3.4
4.6
Push-pull driving
Open-drain driving
(H-to-L)
2.9
77
9.4
2.1
87
2
2
2.2
tpd
ns
Open-drain driving
(L-to-H)
243
214
93
215
99
261
105
248
CLKA
DATxA
DATxB
CLKA
EN
CLKB
DATxB
DATxA
CLK-f
Push-pull driving
11.7
11.1
11.5
24.7
1
6.2
6.2
6.2
13
4.7
4.7
5
3.7
3.7
3.9
6.8
1
3.5
3.7
6.2
4.8
1
Push-pull driving
Push-pull driving
Push-pull driving
Push-pull driving
Push-pull driving
Push-pull driving
Push-pull driving
Open-drain driving
8.9
1
B-port
A-port
B-port
A-port
1
ten
μs
EN
1
1
1
1
1
EN
40
39
35
38
34
tdis
ns
EN
40
38
38
38
36
1.6
32
0.6
1.6
1.7
66
1.7
0.4
0.8
1.6
1
12.2
120
12.7
11.6
6.7
214
4.8
6.8
4
0.4
44
8.3
127
7.2
8.4
5.6
196
4.9
5
1.1
52
5.9
150
4.5
6.3
5.2
184
4.9
5.2
3.1
3.7
1.5
2.7
5
1.9
62
3.3
201
1.5
4.2
5.2
214
5
0.8
74
4.2
194
1.4
3.3
5
CMDA rise time
trA
trB
tfA
ns
ns
ns
ns
CLK-f rise time
DATxA rise time
0.5
0.6
0.5
71
0.4
1
0.7
1.8
1.5
76
0.7
1.1
1.9
79
Push-pull driving
Push-pull driving
1
CMDB rise time
Open-drain driving
73
185
5.1
14
CLKB rise time
DATxB rise time
1.5
0.6
0.8
1.6
0.4
0.1
1.4
1
1.5
0.2
0.2
1.6
0.1
0.2
1.6
0.8
1.7
0.8
1.6
0.9
0.3
1.6
0.3
0.3
1.6
0.8
1.7
0.2
1.6
1
Push-pull driving
5.3
1.5
3.7
2.8
2.9
5.6
1.6
4.5
4.9
Push-pull driving
2.3
3.7
6.8
3.8
5.4
2.3
4.1
4.3
1
2.3
3.9
1.3
1.8
6.3
1.3
5.1
6.9
CMDA fall time
Open-drain driving
3.9
4
1.6
0.6
0.4
0.8
0.9
0.9
0.8
CLK-f fall time
DATxA fall time
Push-pull driving
1
3.9
4.5
4.3
4
Push-pull driving
1.5
1
CMDB fall time
Open-drain driving
1.9
4.2
4.9
tfB
CLKB fall time
DATxB fall time
1.6
1
1.6
2.3
Push-pull driving
Push-pull driving
4.8
Channel-to-channel
skew
tSK(O)
1
1
1
1
1
ns
Push-pull driving
40
1
60
1
60
1
60
1
60
1
Command
Mbps
Open-drain driving
Max data rate
Clock
Data
60
40
60
60
60
60
60
60
60
60
MHz
Push-pull driving
Mbps
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TXS0206-29
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SCES690 –DECEMBER 2009
OPERATING CHARACTERISTICS
TA = 25°C, VCCB = 2.9 V
VCCA TYP
TEST
CONDITIONS
PARAMETER
UNIT
3.3 V
1.2 V
1.5 V
1.8 V
2.5 V
3 V
CLK
Enabled
15
15
15
15.7
17.1
17.1
6.5
A-port input,
B-port
output
DATA
Enabled
6.3
6.4
6.5
6.5
6.5
14
B-port input,
A-port
output
DATA
Enabled
12.5
12.3
12.3
12.5
14
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
(1)
CpdA
pF
CLK
Disabled
0.2
1.2
0.2
1.2
0.2
1.2
0.3
1.2
0.3
1.2
0.3
A-port input,
B-port
output
DATA
Disabled
1.2
0.3
B-port input,
A-port
output
DATA
Disabled
0.2
0.2
0.2
0.3
0.3
A-port input,
B-port
output
DATA
Enabled
31.2
30.6
30.3
29.5
28.5
28.5
27
CLK
Enabled
28.1
12.9
27.2
12.8
27
26.9
13.2
27
B-port input,
A-port
output
DATA
Enabled
12.9
13.2
13.2
pF
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
(1)
CpdB
A-port input,
B-port
output
DATA
Disabled
0.6
0.5
0.5
0.5
0.5
0.6
CLK
Disabled
0.6
1.2
0.5
1.2
0.5
1.2
0.5
1
0.5
1
0.6
1
B-port input,
A-port
output
DATA
Disabled
(1) Power dissipation capacitance per transceiver
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Frequency (Hz)
Figure 6. Typical ASIP EMI Filter Frequency Response
200
150
100
50
60
80 100
Junction Temperature, TJ (°C)
Figure 7. LDO Output Current Derating
0
20
40
–40 –20
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SCES690 –DECEMBER 2009
TYPICAL CHARACTERISTICS
LOAD REGULATION
LOAD REGULATION, LIGHT LOADS
200
160
120
80
100
80
60
40
20
40
0
TA = 25°C
0
TA = -40°C
-20
-40
-60
-80
-100
-40
-80
-120
-160
TA = -40°C
TA = 85°C
TA = 25°C
TA = 85°C
-200
0
0
1
2
3
4
5
50
100
150
200
IOUT (mA)
IOUT (mA)
LINE REGULATION
(IOUT = 5 mA)
LINE REGULATION
(IOUT = 150 mA)
0
-0.2
-0.4
-0.6
-0.8
-1
1
0
TA = -40°C
TA = -40°C
-1
-2
-3
-4
-5
TA = 25°C
TA = 25°C
TA = 85°C
-1.2
-1.4
-1.6
-1.8
-2
TA = 85°C
-2.2
-2.4
3
-6
3
3.25 3.5 3.75
4
4.25 4.5 4.75
VIN (V)
5
5.25 5.5
3.25 3.5 3.75
4
4.25 4.5 4.75
VIN (V)
5
5.25 5.5
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TYPICAL CHARACTERISTICS (continued)
OUTPUT VOLTAGE
DROPOUT VOLTAGE
vs
vs
TEMPERATURE
OUTPUT CURRENT
2
1
250
200
150
100
50
TA = 85°C
TA = 25°C
0
IOUT = 50 mA
TA = -40°C
IOUT = 5 mA
-1
-2
-3
-4
IOUT = 150 mA
0
0
50
100
150
200
-40
-15
10
35
60
85
IOUT (mA)
TJ (°C)
DROPOUT VOLTAGE
vs
GROUND PIN CURRENT
vs
TEMPERATURE
OUTPUT CURRENT
200
175
150
125
100
75
300
250
200
150
100
50
IOUT = 150 mA
IOUT = 100 mA
50
25
IOUT = 5 mA
0
0
0
50
100
150
200
-40
-15
10
35
60
85
IOUT (mA)
TJ (°C)
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TXS0206-29
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SCES690 –DECEMBER 2009
TYPICAL CHARACTERISTICS (continued)
GROUND PIN CURRENT
CURRENT LIMIT
vs
vs
TEMPERATURE (ENABLE)
INPUT VOLTAGE
300
250
200
150
100
50
0.40
0.38
0.36
0.34
0.32
0.30
IOUT = 150 mA
IOUT = 100 mA
TA = -40°C
TA = 25°C
TA = 85°C
IOUT = 2 mA
0
3
3.5
4
4.5
5
5.5
-40
-15
10
35
60
85
VIN (V)
TJ (°C)
POWER SUPPLY RIPPLE REJECTION
vs
OUTPUT SPECTRAL NOISE DENSITY
(COUT = 1 µF)
FREQUENCY (VIN - VOUT = 1 V)
10
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
9
8
7
6
5
4
3
2
1
0
100 mA
0 mA
200 mA
50 mA
10 mA
1101k10k100k1M10M
Frequency (Hz)
Frequency (Hz)
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SCES690 –DECEMBER 2009
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TYPICAL CHARACTERISTICS (continued)
LINE TRANSIENT RESPONSE
(COUT = 1 µF)
LOAD TRANSIENT RESPONSE
(COUT = 1 µF, VIN = 3.3 V, IOUT = 0 to 100 mA)
2.94
2.93
2.92
2.91
2.9
5.5
5.25
5
3.00
2.95
2.90
2.85
2.80
2.75
2.70
2.65
2.60
2.55
2.50
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
-0.02
VIN
VOUT
4.75
4.5
4.25
4
2.89
2.88
2.87
2.86
2.85
VOUT
3.75
3.5
3.25
3
IOUT
-0.35
-0.25
-0.15
-0.05
0.05
0.15
-0.6 -0.5 -0.4 -0.3 -0.2 -0.1
time (ms)
0
0.1
time (ms)
POWER-UP/POWER-DOWN
(COUT = 1 µF, IOUT = 150 mA)
TURN-ON RESPONSE
4
3.5
3.5
3
3
2.5
2
2.5
2
VIN
1.5
1
VIN
VOUT
1.5
1
(COUT = 1 µF)
0.5
0
VOUT
(COUT = 3 µF)
VOUT
0.5
0
-0.5
-0.5
-0.001
0
0.001 0.002 0.003 0.004 0.005 0.006
time (s)
-0.1 -0.05
0
0.05
0.1 0.15
0.2 0.25
0.3
time (ms)
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SCES690 –DECEMBER 2009
PARAMETER MEASUREMENT INFORMATION
V
CCI
V
CCO
V
CCI
V
CCO
DUT
DUT
IN
IN
OUT
OUT
1 MW
1 MW
15 pF
15 pF
DATA RATE, PULSE DURATION, PROPAGATION DELAY,
OUTPUT RISE AND FALL TIME MEASUREMENT USING
AN OPEN-DRAIN DRIVER
DATA RATE, PULSE DURATION, PROPAGATION DELAY,
OUTPUT RISE AND FALL TIME MEASUREMENT USING
A PUSH-PULL DRIVER
2 × V
CCO
S1
50 kW
Open
From Output
Under Test
15 pF
50 kW
TEST
/t
S1
2 × V
t
PZL PLZ
CCO
LOAD CIRCUIT FOR ENABLE/DISABLE
TIME MEASUREMENT
t
/t
Open
PHZ PZH
t
w
V
CCI
V
CCA
V
/2
V
/2
Output
Control
(low-level
enabling)
Input
CCI
CCI
V /2
CCA
V /2
CCA
0 V
VOLTAGE WAVEFORMS
PULSE DURATION
0 V
t
PLZ
t
PZL
V
V
CCO
Output
Waveform 1
V
CCI
V
V
/2
CCO
Input
V
/2
/2
V
/2
CCI
CCI
0.1 y V
CCO
S1 at 2 × V
CCO
OL
0 V
(see Note B)
t
PHZ
t
t
t
PLH
PHL
PZH
Output
Waveform 2
S1 at GND
V
OH
0.9 y V
V
OH
CCO
0.9 y V
CCO
/2
Output
V
CCO
V
CCO
/2
CCO
(see Note B)
0.1 y V
CCO
0 V
V
OL
t
f
t
r
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
A.
C
L
includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRRv10 MHz, Z = 50 Ω, dv/dt ≥ 1 V/ns.
O
D. The outputs are measured one at a time, with one transition per measurement.
E.
F.
G.
H.
I.
t
t
t
V
V
and t
and t
and t
are the same as t
.
dis
.
PLZ
PZL
PLH
PHZ
are the same as t
PZH
en
are the same as t .
pd
PHL
is the V associated with the input port.
CC
CCI
is the V associated with the output port.
CCO
CC
J. All parameters and waveforms are not applicable to all devices.
Figure 8. Load Circuit and Voltage WaveformsN
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PRINCIPLES OF OPERATION
Applications
The TXS0206-29 device is a complete application-specific voltage-translator designed to bridge the
digital-switching compatibility gap and interface logic threshold levels between a micrprocessor with MMC, SD,
and Memory Stick™ cards. It is intended to be used in a point-to-point topology when interfacing these devices
that may or may not be operating at different interface voltages.
Architecture
The CLKA, CLKB, and CLK-f subsystem interfaces consist of a fully-buffered voltage translator design that has
its output transistors to source and sink current optimized for drive strength.
The SDIO lines comprise a semi-buffered auto-direction-sensing based translator architecture (see Figure 9) that
does not require a direction-control signal to control the direction of data flow of the A to B ports (or from B to A
ports).
VCCA
VCCB O/P
One-Shot
One-Shot
R1
T1
R2
Translator
T2
SDIO-DATAx(A)
SDIO-DATAx(B)
Bias
N1
One-Shot
T3
Translator
One-Shot
T4
Figure 9. Architecture of an SDIO Switch-Type Cell
Each of these bidirectional SDIO channels independently determines the direction of data flow without a
direction-control signal. Each I/O pin can be automatically reconfigured as either an input or an output, which is
how this auto-direction feature is realized.
The following two key circuits are employed to facilitate the "switch-type" voltage translation function:
1. Integrated pullup resistors to provide dc-bias and drive capabilities
2. An N-channel pass-gate transistor topology (with a high RON of ~300 Ω) that ties the A-port to the B-port
3. Output one-shot (O.S.) edge-rate accelerator circuitry to detect and accelerate rising edges on the A or B
ports
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SCES690 –DECEMBER 2009
For bidirectional voltage translation, pullup resistors are included on the device for dc current sourcing capability.
The VGATE gate bias of the N-channel pass transistor is set at a level that optimizes the switch characteristics for
maximum data rate as well as minimal static supply leakage. Data can flow in either direction without guidance
from a control signal.
The edge-rate acceleration circuitry speeds up the output slew rate by monitoring the input edge for transitions,
helping maintain the data rate through the device.
During a low-to-high signal rising-edge, the O.S. circuits turn on the PMOS transistors (T1, T3) and its associated
driver output resistance of the driver is decreased to approximately 50 Ω to 70 Ω during this acceleration phase
to increase the current drive capability of the driver for approximately 30 ns or 95% of the input edge, whichever
occurs first. This edge-rate acceleration provides high ac drive by bypassing the internal pullup resistors during
the low-to-high transition to speed up the rising-edge signal.
During a high-to-low signal falling-edge, the O.S. circuits turn on the NMOS transistors (T2, T4) and its associated
driver output resistance of the driver is decreased to approximately 50 Ω to 70 Ω during this acceleration phase
to increase the current drive capability of the driver for approximately 30 ns or 95% of the input edge, whichever
occurs first.
To minimize dynamic ICC and the possibility of signal contention, the user should wait for the O.S. circuit to
turn-off before applying a signal in the opposite direction. The worst-case duration is equal to the minimum
pulse-width number provided in the Timing Requirements section of this data sheet.
Once the O.S. is triggered and switched off, both the A and B ports must go to the same state (i.e. both High or
both Low) for the one-shot to trigger again. In a DC state, the output drivers maintain a Low state through the
pass transistor. The output drivers maintain a High through the "smart pullup resistors" that dynamically change
value based on whether a Low or a High is being passed through the SDIO lines, as follows:
•
•
•
RPU1 and RPU2 values are a nominal 40 kΩ when the output is driving a low
RPU1 and RPU2 values are a nominal 4 kΩ when the output is driving a high
RPU1 and RPU2 values are a nominal 70 kΩ when the device is disabled via the EN pin or by pulling the either
VCCA or VCCBO/P to 0 V.
The reason for using these "smart" pullup resistors is to allow the TXS0206-29 to realize a lower static power
consumption (when the I/Os are low), support lower VOL values for the same size pass-gate transistor, and
improved simultaneous switching performance.
Input Driver Requirements
The continuous dc-current "sinking" capability is determined by the external system-level driver interfaced to the
SDIO pins. Since the high bandwidth of these bidirectional SDIO circuits necessitates the need for a port to
quickly change from an input to an output (and vice-vera), they have a modest dc-current "sourcing" capability of
hundreds of micro-Amps, as determined by the smart pullup resistor values.
The fall time (tfA, tfB) of a signal depends on the edge rate and output impedance of the external device driving
the SDIO I/Os, as well as the capacitive loading on these lines.
Similarly, the tpd and max data rates also depend on the output impedance of the external driver. The values for
tfA, tfB, tpd, and maximum data rates in the data sheet assume that the output impedance of the external driver is
less than 50 Ω.
Output Load Considerations
TI recommends careful PCB layout practices with short PCB trace lengths to avoid excessive capacitive loading
and to ensure that proper O.S. triggering takes place. PCB signal trace-lengths should be kept short enough
such that the round trip delay of any reflection is less than the one-shot duration. This improves signal integrity
by ensuring that any reflection sees a low impedance at the driver. The O.S. circuits have been designed to stay
on for approximately 30 ns. The maximum capacitance of the lumped load that can be driven also depends
directly on the one-shot duration. With very heavy capacitive loads, the one-shot can time-out before the signal is
driven fully to the positive rail. The O.S. duration has been set to best optimize trade-offs between dynamic ICC
,
load driving capability, and maximum bit-rate considerations. Both PCB trace length and connectors add to the
capacitance that the TXS0206-29 SDIO output sees, so it is recommended that this lumped-load capacitance be
considered and kept below 50 pF to avoid O.S. retriggering, bus contention, output signal oscillations, or other
adverse system-level affects.
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When using the TXS0206-29 device with MMCs, SD, and Memory Stick™ to ensure that a valid receiver input
voltage high (VIH) is achieved, the value of any pulldown resistors (external or internal to a memory card) must
not be >10-kΩ value. The impact of adding too heavy a pulldown resistor (i.e. <10-kΩ value) to the data and
command lines of the TXS0206-29 device and the resulting 4-kΩ pullup & 10-kΩ pulldown voltage divider
network has a direct impact on the VIH of the signal being sent into the memory card and its associated logic.
The resulting VIH voltage for the 10-kΩ pulldown resistor value would be:
VCC × 10 kΩ / (10 kΩ+ 4 kΩ) = 0.714 × VCC
This is marginally above a valid input high voltage for a 1.8-V signal (i.e., 0.65 × VCC).
The resulting VIH voltage for 20-kΩ pulldown resistor value would be:
VCC × 20 kΩ / (20 kΩ + 4 kΩ) = 0.833 × VCC
Which is above the valid input high voltage for a 1.8-V signal of 0.65 × VCC
.
.
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PACKAGE OPTION ADDENDUM
www.ti.com
23-Dec-2009
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
TXS0206-29YFPR
ACTIVE
DSBGA
YFP
20
3000 Green (RoHS &
no Sb/Br)
SNAGCU
Level-1-260C-UNLIM
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
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www.ti.com/space-avionics-defense
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