MSM7577MS-K [OKI]
Telecom Circuit, 1-Func, PDSO16, 0.300 INCH, 1.27 MM PITCH, PLASTIC, SOP-16;
| 型号： | MSM7577MS-K |
| 厂家： | 
OKI ELECTRONIC COMPONETS |
| 描述： | Telecom Circuit, 1-Func, PDSO16, 0.300 INCH, 1.27 MM PITCH, PLASTIC, SOP-16 |
| 文件： | 总8页 (文件大小：75K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
E2A0045-16-X1
This version: Jan. 1998
Previous version: Nov. 1996
¡ Semiconductor
MSM7577
Voice Signal Level Control LSI
GENERAL DESCRIPTION
The MSM7577 is an LSI for Audio Signal Level adjustment for telephone set, etc.
Conventionally, its circuit has been made within individual unit, such as amplifiers, resistors and
switches. However, using this LSI allows for simple mounting and economically small space.
FEATURES
Receiving system
• Built-in electrical volume
Digital control (3 bit / 8 step)
• For transmission voice, with side tone route available.
• Mute function available.
Transmitting system
• Built-in operational amplifier for transmission signal level adjustment.
• Mute function available.
• Single +2.7 V to +5.25 V power supply
• Power down function
• Package:
16-pin plastic SOP
(SOP16-P-300-1.27-K) (Product name : MSM7577MS-K)
APPLICATION
Cellular handset, cordless telephone, etc.
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¡ Semiconductor
MSM7577
BLOCK DIAGRAM
56 kW
ATT
10 kW
–
i
o
–
+
RAUD
+
200 kW
SG
RCV1
AN2
SG
ATT0
ATT1
ATT2
ATTE
ATT0
ATT1
ATT2
ATTE
–
+
RCV2
150 kW
SG
AO3
AN3
MIC
–
+
35 kW
–
200 kW
TAUD
35 kW
+
SG
SG
V
DD
SG
GND
PD
PIN CONFIGURATION (TOP VIEW)
TAUD
AN2
1
2
3
4
5
6
7
8
16 VDD
15 AO3
14 MIC
13 AN3
12 ATTE
11 ATT2
10 ATT1
PD
RCV2
RCV1
NC
RAUD
GND
9
ATT0
16-Pin Plastic SOP
NC : No connect pin
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¡ Semiconductor
MSM7577
PIN DESCRIPTION
Pin No.
Name
I/O
Description
Output pin of transmitting voice.
Receive voice input.
1
TAUD
O
2
AN2
I
Gain control should be connected by a resistor between AN2 pin RCV2 pin.
Power down control.
3
PD
1
H : Power down
L : Power on
Output pin of receiving voice.
Gain control should be connected by a resistor between AN2 and RCV2 pin.
RCV2 signal is opposite phase to RCV1 signal.
Receive voice input.
4
5
RCV2
RCV1
O
O
RCV1 signal is opposite phase to RCV2 signal.
No Connection.
6
7
8
NC
—
I
RAUD
GND
Receive voice input.
—
Ground (0 V).
Volume control.
ATT2 ATT1 ATT0
Loss level (dB)
0 0.3
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
–2 0.3
9
ATT0
ATT1
ATT2
–4 0.3
10
11
I
–7 0.3
–10 0.3
–13 0.3
–16 0.3
–19 0.3
Mute signal input.
H : Mute mode
12
ATTE
I
L : Operating mode
Gain control and frequency responce control.
Gain control should be controlled by a resistor between AN3 and AO3.
Input pin of Microphone signal.
13
14
15
16
AN3
MIC
AO3
VDD
I
I
Gain control and frequency responce control.
Gain control should be controlled by a resistor between AN3 and AO3.
Power supply (+3 V).
O
—
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¡ Semiconductor
MSM7577
ABSOLUTE MAXIMUM RATINGS
Parameter
Power Supply Voltage
Digital Input Voltage
Analog Input Voltage
Storage Temperature
Symbol
VDD
Min.
–0.3
–0.3
–0.3
–55
Max.
+7.0
Unit
V
VIND
VDD + 0.3
VDD + 0.3
+150
V
VINA
V
TSTG
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
Operating Temperature
Power Supply Voltage
Analog Output Load
Resistance 1
Symbol
Ta
Condition
Min.
–20
Typ.
25
Max.
70
Unit
°C
—
VDD
VDD
+2.7
+3.00
+5.25
V
RLA1
RLA2
TAUD
600
10
—
—
—
—
W
Analog Output Load
Resistance 2
Except TAUD pin.
kW
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¡ Semiconductor
MSM7577
ELECTRICAL CHARACTERISTICS
DC Characteristics
( Ta = –20°C to 70°C, VDD = 2.7 V to 5.25 V )
Parameter
Symbol
IDD
Condition
VDD = 3.0 V
*VDD = 5.0 V
PD = VDD
Min.
—
Typ.
1.2
Max.
2.4
Unit
mA
mA
V
Power Supply Current
—
10.0
0.1
20
Power Down Current
Low Level Input
Voltage
—
—
0.2
ATT0 to ATT2
ATTE, PD
0.3 ¥
VDD
VIL
0
—
—
High Level Input
Voltage
ATT0 to ATT2
ATTE, PD
0.7 ¥
VIH
VDD
+10
1.2
—
V
VDD
Digital Input Leakage
Current
IIL
IIH
VI = GND
–10
—
—
mA
VI = VDD
Analog Input
Voltage Level
Analog Input
Resistance
RAUD, MIC
AN2, AN3
VIA
RIA
V01
V02
—
VP-P
kW
RAUD
—
200
—
MIC
Analog Output
Level Range 1
Analog Output
Level Range 2
RCV1, RCV2, AO3
RL = 5 kW (to SG level)
TAUD
1.2
1.2
—
VP-P
VP-P
—
—
RL = 600 W (to SG level)
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¡ Semiconductor
MSM7577
Analog Interface Characteristics
( Ta = –20°C to 70°C, VDD = 2.7 V to 5.25 V )
Parameter
RX-AUDIO
Symbol
Condition
RAUD-RCV1
Min.
Typ.
Max.
Unit
ATT = 0 dB
VRXA
+14
+15
+16
dB
Path Gain
ATTE = L
RAUD-RCV1
RAUD = –20 dBV
ATTE = 0 dB
RX-AUDIO
LRXA
40
—
—
dB
Loss Level (Mute)
ATTE = LÆH
MIC-TAUD
TX-AUDIO
Loss Level
MIC = –20 dBV
ATTE = LÆH
LTXA
40
—
0
—
dB
dB
MIC-TAUD
TX-AUDIO
Path Gain
AO3 and AN3 are connected
600 W load resistance
MIC-RCV1
VTXA
–1.0
+1.0
MIC Path Gain
VRTA
VATG
–9.5
–0.3
–8.5
0
–7.5
+0.3
dB
dB
AO3 and AN3 are connected
RAUD-RCV1
ATT
Establish Error
ATT0 to ATT2
MIC = –7.45 dBV
fi = 1 kHz
TX-AUDIO
Distortion
—
—
—
8
%
600 W load resistance
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¡ Semiconductor
MSM7577
APPLICATION CIRCUIT
MSM7577MS-K
+3 V
C2
C1
Transmit voice data
1
TAUD
VDD 16
C4
2 AN2
3 PD
15
14
AO3
MIC
R2
C3
RCV2
4
5
AN3 13
R1
RCV1
ATTE 12
6 NC
11
10
ATT2
ATT1
C1
R1 > 30 kW
R2 > 30 kW
C1 = 0.1 µF
C2 = 1 µF
Receive voice data
RAUD
7
8
GND
ATT0 9
C3 = 50 pF
C4 = 10 pF
Gain = R2/R1
In the Reverse Type
C6
R4
AO3
R3 > 10 kW
R4 > 10 kW
C5 > 1 µF
C6 = 50 pF
Gain = R4/R3
C5
R3
AN3
MIC
Analog input
–
+
In the Same Phase Type
C7
R5
MIC
AN3
R5 > 10 kW
R6 > 10 kW
C7 > 0.1 µF
C8 > 1 µF
C9 = 10 pF
Gain = 1 + (R5/R6)
Analog input
–
+
AO3
R6
C8
C9
7/8
¡ Semiconductor
MSM7577
PACKAGE DIMENSIONS
(Unit : mm)
SOP16-P-300-1.27-K
Mirror finish
Package material
Lead frame material
Pin treatment
Solder plate thickness
Package weight (g)
Epoxy resin
Cu alloy
Solder plating
5 mm or more
0.21 TYP.
Notes for Mounting the Surface Mount Type Package
The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which
are very susceptible to heat in reflow mounting and humidity absorbed in storage.
Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the
product name, package name, pin number, package code and desired mounting conditions
(reflow method, temperature and times).
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