M66261FP [MITSUBISHI]
6 x 5 CROSSPOINT SWITCH with MIXING FUNCTION; 6× 5矩阵开关与混合功能
| 型号： | M66261FP |
| 厂家： | 
Mitsubishi Group |
| 描述： | 6 x 5 CROSSPOINT SWITCH with MIXING FUNCTION |
| 文件： | 总6页 (文件大小：100K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MITSUBISHIDIGITALASSP
M66261FP
6 × 5 CROSSPOINT SWITCH with MIXING FUNCTION
DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
The M66261 is an integrated circuit consisting of a 6 × 5
cross point switch capable of selecting 30 analog switches
with mixing registance respectively by serial control inputs.
Using the M66261 with an external standard Op-Amp, 6
analog input signals can be mixed and output to any of 5 out-
puts freely by serial control inputs.
→
→
→
→
→
→
←
←
←
←
←
1
2
24
23
22
21
20
19
18
17
16
15
14
13
SHIFT CLOCK INPUT CKS
VCC
LE
←
SHIFT DATA INPUT
DIRECT RESET INPUT
A
RD
X0
X2
X4
LATCH ENABLE INPUT
3
VCC(SWITCH)
4
←
←
←
X1
5
SWITCH INPUTS
X3
SWITCH INPUTS
6
X5
FEATURES
• High noise margin
......................... Schmidt trigger circuit built in CKS and LE
• Switching and mixing function possible with standard Op-
Amp.
7
XOUTO
YS0
NC
YS4
YOUT4
YOUT3 SWITCH OUTPUTS
YS3
YS2
8
→
→
→
→
→
9
YS1
SWITCH OUTPUTS
10
11
12
YOUT1
YOUT2
GND
• Excellent crosstalk characteristic
..........................–90dB [fIN = 3kHz, VIN = –10dBV] (typ.)
• Line backup function provided in case of a power failure
............................................... (Effective when RD is “L.”)
• Power supply pins for control circuit (VCC) and for
crosspoint switch circuit (VCC(switch)) are provided sepa-
rately.
Outline 24P2N-B
NC terminal : connect to GND
APPLICATION
Line switching with mixing function of telephone and commu-
nication equipments.
BLOCK DIAGRAM
DIRECT RESET
INPUT
SHIFT CLOCK
INPUT
LATCH ENABLE
INPUT
SHIFT DATA
INPUT
SWITCH INPUTS
X
19
5
X
6
4
X
20
3
X
5
2
X
21
1
X
4
0
R
3 23
D
LE
CK
1
S A
2
Y
OUT0
7
8
R LE
CK DIN
S0
5
4
3
2
1
0
6
Y
Y
S0
D
D
D
D
D
L0
L1
L2
L3
L4
Q
Q
Q
Q
Q
L0
L1
L2
L3
L4
Q
Q
Q
Q
Q
OUT1 10
S1
S2
S3
S4
11
17
23
29
10
16
22
28
9
8
7
YS1
9
Y
OUT2 11
15
21
27
14
20
26
13
19
25
12
18
LATCH
CIRCUIT
(× 30)
30-BIT
SHIFT
REGISTER
YS2
13
OUT3 15
Note 1:
Y
n
YS3
14
OUT4 16
Y
QLn
Q
Q
L28
L29
D
D
L28
L29
Q
Q
S28
S29
24
22
YS4
17
6 × 5 CROSSPOINT SWITCH
CONTROL CIRCUIT
18
12
24
n = 0~29
VCC (SWITCH)
NC
GND
VCC
Note 2 : Connect NC terminal to GND
1
MITSUBISHI DIGITAL ASSP
M66261FP
6 × 5 CROSSPOINT SWITCH with MIXING FUNCTION
FUNCTION
Analog switches come on in a low-impedance state when the
output of the corresponding latch circuit is “H.” They come off
in a high-impedance stage when the output of the corre-
sponding circuit is “L.”
When direct reset input RD changes to “L,” switches 0 and 29
only come on, and others come off. This function backs up
the line if a power failure occurs.
Serial data input A is the data input of the first step of 30 BIT
SHIFT REGISTER and when latch enable input LE is “L”, the
signal of A shifts shifting registers one by one when shift
clock input CKS changes from “L” to “H”, in units of 32 bits.
The first 2 bits of shifting data are ignored and the other 30
bits are stored into LATCH CIRCUIT in parallel when latch
enable LE changes from “L” to “H”.
FUNCTION TABLES
(1) 30-bit shift register (Note 3)
Inputs
CKS
Internal outputs
Operation
mode
RD
×
A
L
LE
L
QS0
L
QS1
QS2
QS3
· · · · ·
· · · · ·
· · · · ·
QS27
QS28
QS29
0
0
0
0
0
0
↑
↑
Q S0
Q S1
Q S2
Q S26
Q S27
Q S28
Shift
0
0
0
0
0
0
×
H
L
H
Q S0
Q S1
Q S2
Q S26
Q S27
Q S28
(2) Latch circuit [× 30] (Note 3)
Inputs
Internal outputs
Operation
mode
RD
L
A
×
×
×
CKS
×
LE
×
QL0
H
QL1
L
QL2
L
QL3
· · · · ·
· · · · ·
· · · · ·
· · · · ·
QL27
L
QL28
L
QL29
H
Reset
Shift
L
H
×
H
L
QS0
QS1
QS2
QS3
QS27
QS28
QS29
0
0
0
0
0
0
0
H
×
Q L0
Q L1
Q L2
Q L3
Q L27
Q L28
Q L29
(3) 6 × 5 cross point switch
QLn
L
Status of switch No. n
OFF
ON
H
Table 1. Latch Output (QLN) and Corresponding Switch No. n
Latch output
Switch No.
QL0
0
QL1
1
QL2
2
QL3
3
· · · · ·
· · · · ·
QL27
27
QL28
QL29
29
28
Note 3. ↑
: Change from “L” to “H”
: “H” or “L”
×
Q0S : The content of shift register before CKS changed
Q0L : The content of latch circuit before LE changed from “H” to “L”
OPERATION TIMING CHART
RD
32 bits
32 bits
CKs
A
31 30 29 28 27
1
0
31 30 29 28 27
Dummy data
1
0
Set switch No.
Dummy data
LE
Switch on/off setting
Switch on/off setting
2
MITSUBISHI DIGITAL ASSP
M66261FP
6 × 5 CROSSPOINT SWITCH with MIXING FUNCTION
ABSOLUTE MAXIMUM RATINGS (Ta = –20°C to 75°C, VCC = VCC (switch) unless otherwise noted)
Symbol
Parameter
Conditions
Rating
Unit
V
VCC
VI
Supply voltage
Input voltage
–0.5 ~ +7.0
RD, A, CKS, LE
X0 ~ X5
–0.5 ~ VCC +0.5
–0.5 ~ VCC +0.5
V
V
YS0 ~ YS4,
YOUT0 ~ YOUT4
VO
Output voltage
–0.5 ~ VCC +0.5
Pd
Power dissipation
500
mW
Tstg
Storage temperature
–65 ~ 150
°C
RECOMMENDED OPERATIONAL CONDITIONS (Ta = –20°C to 75°C, VCC = VCC (switch) unless otherwise noted)
Limits
Symbol
Parameter
Unit
Min.
2.8
0
Typ.
Max.
5.5
VCC
VI
Supply voltage
Input voltage
V
V
V
RD, A, CKS, LE
X0 ~ X5
VCC
VCC
0
YS0 ~ YS4,
YOUT0 ~ YOUT4
VO
Output voltage
0
VCC
75
V
Topr
Operating temperature
–20
°C
ELECTRICAL CHARACTERISTICS (Ta = –20°C to 75°C, VCC = VCC (switch) 2.8V ~ 5.5V and GND = 0V unless otherwise noted)
Limits
Test conditions
Parameter
Unit
Symbol
Min.
0.8 × VCC
Typ.
Max.
“H” Input voltage
“L” Input voltage
V
V
V
V
VIH
VIL
RD, A
0.2 ×
0.8 ×
V
CC
CC
Positive-going threshold voltage
Negative-going threshold voltage
0.35 × VCC
CC
V
VT+
VT–
CKS, LE
0.2 ×
V
0.65 × VCC
Xn→YSm
n = 0 ~ 5
m = 0 ~ 4
VI (Xn) = 0.5 × VCC
(For any one of switches)
Input resistance
15
25
40
kΩ
RI
VI (YOUTm) = 0.5 × VCC
(For any one of switches)
YOUTm
→YSm
Feedback resistance
15
25
1
40
kΩ
Rf
(1 block)
On resistance difference (Rf and RI)
Off-state leakage current
0.9
1.1
—
∆R
Switches off; VI = VIH or VIL
(for each of Xn, Ysm and
YOUTm)
1.0
µA
IOFF
V
CC =2.8V
CC = 5.5V
200
400
1.0
VI = VCC or GND
Quiescent supply current
µA
ICC
V
VI = VCC
“H” input current
“L” input current
µA
µA
IIH
IIL
VI = GND
–1.0
VI = VI (RD, A, CKS, LE)
3
MITSUBISHI DIGITAL ASSP
M66261FP
6 × 5 CROSSPOINT SWITCH with MIXING FUNCTION
TIMING CONDITIONS (Ta = –20°C to 75°C, VCC = VCC (switch) = 2.8V ~ 5.5V and GND = 0V unless otherwise noted)
Limits
Typ.
Symbol
Parameter
Conditions
(Note 4)
Unit
Min.
1000
400
Max.
tc
Clock cycle
ns
ns
ns
ns
ns
ns
ns
ns
tw± (CKs)
tw (LE)
Clock pulse width
Latch enable pulse width
Reset pulse width
1000
1000
400
tw (RD)
tsu (A-CKs)
th (CKs-A)
trec (RD-LE)
trec (CKs-LE)
A setup time before CKS
A hold time after CKS
LE recovery time after RD
LE recovery time after CKS
200
1000
1000
CROSSTALK CHARACTERISTICS
Limits
Typ.
Symbol
Parameter
Test conditions
Unit
dB
Min.
Max.
—
Crosstalk freqency
–90
: VI = –10dBV, fIN = 3kHz, Other input: 1kΩ at terminal
Ta = 25°C, VCC = +2.5V, GND = –2.5V
VCC (switch) = +2.5V
Standard Op-Amp: M5228P (connected externally)
RL = 10kΩ
Crosstalk: 20log 10 VO
VI
Note 4: TEST CIRCUIT
Input
VCC
(1)Pulse generator (PG) characteristics
tr = tf = 6ns (10%~90%)
VIN = 0 to VCC
(2)CL includes stray wiring capacitance
and probe input capacitance.
(3)Reference voltage
PG
DUT
Output
CL
Input voltage: 0.5 × VCC
Output voltage : 0.5 × VCC
50Ω
4
MITSUBISHI DIGITAL ASSP
M66261FP
6 × 5 CROSSPOINT SWITCH with MIXING FUNCTION
TIMING CHART
tw(RD)
trec(RD−LE)
RD
tc
tw−(CKs)
CKs
tw+(CKs)
A
tsu(A−CKs) th(CKs−A)
trec(CKs−LE)
tw(LE)
LE
5
MITSUBISHI DIGITAL ASSP
M66261FP
6 × 5 CROSSPOINT SWITCH with MIXING FUNCTION
APPLICATION EXAMPLE (Line backup function provided in case of a power failure)
When direct reset input RD changes to “L”, switches 0 and 29 only come on, and others come off.
In a power failure, using the following connection, communication can be maintained between Line and Host phone in
case RD is “L”. In this time, the voltage 2.8 ~ 5.5V must be supplied on VCC and VCC (switch).
6 × 5 CROSSPOINT SWITCH
HOST PHONE
VCC
MICROPHONE INPUT
X0
X1
X2
X3
X4
X5
0
EXTENSION
MICROPHONE INPUT
V
CC (SWITCH)
ALAME INPUT
DOOR PHONE INPUT
2.8~5.5V
PLAYBACK INPUT
LINE INPUT
GND
29
Vref
+
−
+
−
+
−
+
−
+
−
STANDARD
Op-Amp
6
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MITSUBISHI
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