MSM7543 Datasheet, PDF (11/19 Pages) OKI electronic componets – Single Rail CODEC

¡ Semiconductor
MSM7543/7544
AC Characteristics
(V_DD = +5 V ±5%, Ta = –30°C to +85°C)
Parameter
Symbol ^{Freq. Level} Condition Min.
(Hz) (dBm0)
Typ.
Max. Unit
Loss T1 60
20
26
—
dB
Loss T2 300
–0.20 +0.07 +0.20 dB
Loss T3 1020
Transmit Frequency Response
0
Loss T4 2020
Reference
dB
–0.15 –0.04 +0.20 dB
Loss T5 3000
–0.15 +0.06 +0.20 dB
Loss T6 3400
0
0.4
0.80 dB
Loss R1 300
–0.15 –0.03 +0.20 dB
Loss R2 1020
Reference
dB
Receive Frequency Response
Loss R3 2020
0
–0.15 –0.02 +0.20 dB
Loss R4 3000
–0.15 +0.15 +0.20 dB
Loss R5 3400
0.0
0.56 0.80 dB
SD T1
3
35
43
—
SD T2
0
35
41
—
SD T3
–30
35
38
—
Transmit Signal to Distortion Ratio
1020
*2
31.5
dB
SD T4
–40
29
—
*1
31.0
SD T5
*2
27
–45
24
—
26
SD R1
3
36
43
—
SD R2
0
36
41
—
SD R3
–30
36
40
—
Receive Signal to Distortion Ratio
1020
*2
34.5
dB
SD R4
–40
30
—
*1
32
SD R5
*2
30
–45
25
—
27
GT T1
3
–0.2 +0.01 +0.2
GT T2
–10
Reference
Transmit Gain Tracking
GT T3 1020 –40
–0.2
0
+0.2 dB
GT T4
–50
–0.4 –0.03 +0.4
GT T5
–55
–1.2 +0.15 +1.2
GT R1
3
–0.2 –0.06 +0.2
GT R2
–10
Reference
Receive Gain Tracking
GT R3 1020 –40
–0.2 –0.02 +0.2 dB
GT R4
–50
–0.4 –0.02 +0.4
GT R5
–55
–0.8 –0.27 +0.8
*1 Psophometric filter is used
*2 Upper is specified for the MSM7543, lower for the MSM7544
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