MSM7728 查看數據表（PDF） - Oki Electric Industry
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MSM7728 Datasheet PDF : 23 Pages
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¡ Semiconductor
MSM7728
ELECTRICAL CHARACTERISTICS
DC and Digital Interface Characteristics
(Fs = 8 kHz, VDD = 2.5 V to 3.6 V, Ta = –30°C to +85°C)
Parameter
Symbol
Condition
Min. Typ. Max. Unit
Power Supply Current
IDD1
Operating mode, VDD = 3.6 V
No signal
VDD = 3.0 V
—
—
20
12
— mA
— mA
IDD2 Power-off mode
—
70
200 mA
High Level Input Voltage
0.45 ¥
VIH SYNC, BCLK, PCMIN, WRN,
VDD
—
VDD
V
Low Level Input Voltage
RDN, CDIN, DCLK, RSTN
VIL
0.16 ¥
0.0
—
V
VDD
High Level Input Leakage Current IIH
—
—
—
2.0 mA
Low Level Input Leakage Current IIL
—
—
—
0.5 mA
Digital Output Low Voltage
PCMOUT pull-up resistor = 500 W
VOL LA, LED, CDOUT IOL = 0.4mA
0.0
0.2
0.4
V
Digital Output High Voltage
VOH LA, LED, CDOUT IOH = 1mA VDD – 0.2
V
Digital Output Leakage Current
IO
—
—
—
10
mA
Input Capacitance
CIN
—
—
5
—
pF
Transmit Analog Interface Characteristics
(Fs = 8 kHz, VDD = 2.5 V to 3.6 V, Ta = –30°C to +85°C)
Parameter
Symbol
Condition
Min. Typ. Max. Unit
Input Resistance
RINX MAIN
10
—
— MW
Output Load Resistance
RLGX MAO with respect to SG
30
—
—
kW
Output Load Capacitance
CLGX potential
—
—
30
pF
Output Amplitude
VOGX
–0.7
—
+0.7
V
Offset Voltage
MAO with respect to SG potential
VOSGX (DC Gain = 1)
–20
—
+20 mV
Receive Analog Interface Characteristics
(Fs = 8 kHz, VDD = 2.5 V to 3.6 V, Ta = –30°C to +85°C)
Parameter
Symbol
Condition
Min. Typ. Max. Unit
ROSP SPKP, SPKN
—
—
10
W
Output Resistance
ROER EAR
—
—
100 W
ROTO TOUT
—
10
—
kW
Output Load Resistance
RLSP SPKP-SPKN
600
—
RLER EAR with respect to SG potential 600
—
—
W
—
W
Output Load Capacitance
CLAO Output open
—
—
50
pF
Output Amplitude
VOAO SPKP, SPKN, EAR
–1.1
—
+1.1
V
Offset Voltage
SPKP, SPKN, EAR, TOUT with
VOSA respect to SG potential
–100
—
+100 mV
10/23
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