參數(shù)資料
型號(hào): FEDL7204-001DIGEST-01
廠商: OKI SEMICONDUCTOR CO., LTD.
元件分類: Codec
英文描述: The ML7204-001 is a speech CODEC for VoIP.
中文描述: 在ML7204 - 001是一種VoIP語(yǔ)音編解碼器。
文件頁(yè)數(shù): 13/42頁(yè)
文件大?。?/td> 792K
代理商: FEDL7204-001DIGEST-01
FEDL7204-001DIGEST-01
OKI Semiconductor
ML7204-001
13/42
AC Characteristics in Speech CODEC = G.711 (
μ
-law) Mode
(AVDD = 3.0 to 3.6V, DVDD0, 1, 2 = 3.0 to 3.6 V, AGND = DGND0, 1, 2
= 0.0 V, Ta = –20 to 60
°
C unless otherwise specified)
Condition
Frequency (Hz)
Level (dBm0)
0 to 60
300 to 3000
1020
3300
3400
3968.75
0 to 3000
1020
3300
3400
3968.75
3
0
–30
–40
–45
3
0
–30
–40
–45
3
–10
–40
–50
–55
3
–10
–40
–50
–55
Analog input =
AVREF
PCMI = ”1”
Parameter
Symbol
Min.
Typ.
Max.
Unit
LT1
LT2
LT3
LT4
LT5
LT6
LR2
LR3
LR4
LR5
LR6
SDT1
SDT2
SDT3
SDT4
SDT5
SDR1
SDR2
SDR3
SDR4
SDR5
GTT1
GTT2
GTT3
GTT4
GTT5
GTR1
GTR2
GTR3
GTR4
GTR5
25
–0.15
0.20
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBp
dBp
dBp
dBp
dBp
dBp
dBp
dBp
dBp
dBp
dB
dB
dB
dB
dB
dB
dB
dB
Reference
Reference
Reference
Reference
–0.15
0
13
–0.15
0.80
0.80
0.20
Transmit frequency
characteristics
0
–0.15
0
13
35
35
35
28
23
35
35
35
28
23
–0.2
0.80
0.80
0.2
Receive frequency
characteristics
0
Transmit
signal-to-noise ratio
(*1)
1020
Receive
signal-to-noise ratio
(*1)
1020
–0.2
–0.6
–1.2
–0.2
0.2
0.6
1.2
0.2
Transmit inter-level
loss errors
1020
–0.2
–0.6
–1.2
0.2
0.6
1.2
Receive inter-level
loss errors
1020
NIDLT
–70
dBm0p
Idle channel noise
(*1)
NIDLR
–70
dBm0p
Transmit absolute
level (*2)
Receive absolute level
(*2)
*1 P-message weighted filter used
*2 0.320 Vrms = 0 dBm0 = –7.7 dBm (600
)
AVT
1020
0
0.285
0.320
0.359
Vrms
AVR
1020
0
0.285
0.320
0.359
Vrms
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