MSM7731-02 OKI [OKI electronic componets], MSM7731-02 Datasheet - Page 20

• Manufacturer Part Number: MSM7731-02
• Description: Dual Echo Canceler & Noise Canceler with Dual Codec for Hands-Free
• Manufacturer: OKI [OKI electronic componets]

AC Characteristic (Line side CODEC/Acoustic side CODEC)
Note:
1 Semiconductor
Transmit Frequency
Response
Receive Frequency
Response
Transmit Signal to
Distortion Ratio
Receive Signal to
Distortion Ratio
Transmit Gain
Tracking
Receive Gain
Tracking
Idle Channel Noise
Absolute Signal
Amplitude
Power Supply Noise
Rejection Ratio
Parameter
*3. CODEC input/output gain = 1
*4. P-message weighted filter used
0.320 Vrms = 0 dBm0 = –7.7 dBm
Symbol
L
L
L
L
L
L
L
L
L
L
L
SD R1
SD R2
SD R3
SD R4
SD R5
SD T1
SD T2
SD T3
SD T4
SD T5
GT T1
GT T2
GT T3
GT T4
GT T5
GT R1
GT R2
GT R3
GT R4
GT R5
P
P
N
N
OSS
OSS
OSS
OSS
OSS
OSS
OSS
OSS
OSS
OSS
OSS
A
A
SRRR
SRRT
IDLR
IDLT
VT
VR
R1
R2
R3
R4
R5
T1
T2
T3
T4
T5
T6
300 to 3000
Noise Freq:
0 to 50 kHz
0 to 3000
Freq. (Hz)
0 to 60
3968.75
3968.75
1020
3300
3400
1020
3300
3400
1020
1020
1020
1020
1020
—
—
Condition
50 mV
(dBm0)
Level:
Noise
Level
–30
–40
–45
–30
–40
–45
–10
–40
–50
–55
–10
–40
–50
–55
—
—
0
0
3
0
3
0
3
3
0
PP
A/LGSX (*3)
A/LVFRO
(*3, *4)
(*3, *4)
(*3, *4)
(*3, *4)
Others
(*3)
(*3)
(*3)
(*3)
(*3)
(*3)
(V
DD
–0.15
–0.15
–0.15
–0.15
0.285
0.285
–0.2
–0.2
–0.5
–1.2
–0.2
–0.2
–0.5
–1.2
Min.
25
13
13
35
28
23
35
28
23
30
30
= 2.7 to 3.6 V, Ta = –40 to +85°C)
35
35
35
35
—
—
0
0
Reference
Reference
Reference
Reference
Typ.
0.32
0.32
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
(–75.7)
(–79.7)
+0.20
+0.80
+0.20
+0.80
0.359
0.359
Max.
0.80
0.80
+0.2
+0.2
+0.5
+1.2
+0.2
+0.2
+0.5
+1.2
–68
–72
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
FEDL7731-02-04
MSM7731-02
(dBmp)
dBm0p
Vrms
Vrms
Unit
dB
dB
dB
dB
dB
dB
dB
dB
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