參數資料
型號: T8536B
元件分類: Codec
英文描述: T8535B/T8536B Quad Programmable Codec
中文描述: T8535B/T8536B四可編程編解碼器
文件頁數: 31/50頁
文件大?。?/td> 929K
代理商: T8536B
Agere Systems Inc.
31
Preliminary Data Sheet
September 2001
T8535B/T8536B Quad Programmable Codec
Electrical Characteristics
(continued)
Noise Characteristics
Table 14. Per-Channel Noise Characteristics
* R
VFXI
= 25 M
.
Parameter
Symbol
N
XC
Test Conditions
0 dB transmit gain*.
Min
Typ
7
Max
18
Unit
dBrnC0
Transmit Noise,
C-Message Weighted
Transmit Noise,
P-Message Weighted
Receive Noise,
C-Message Weighted
Receive Noise,
P-Message Weighted
Noise, Single Frequency
N
XP
0 dB transmit gain*.
68
dBm0p
N
RC
0 dB receive gain, digital pattern
corresponding to idle PCM code,
μ
-law*.
0 dB receive gain, digital pattern
corresponding to idle PCM code, A-law*.
f = 0 kHz to 100 kHz, loop around
measurement, V
VFxI
= 0
Vrms.
V
DD
= 5.0 V
DC
+ 100
mVrms:
f = 0 kHz to 4 kHz
f = 4 kHz to 50 kHz
C-message weighted.
Measured on
VF
R
OP
,
V
DD
= 5.0 V
DC
+ 100 mVrms:
f = 0 kHz to 4 kHz
f = 4 kHz to 25 kHz
f = 25 kHz to 50 kHz.
0 dBm0, 300 Hz to 3400 Hz signal applied
to
V
VFxI
, transmit gain set to 0 dB:
4600 Hz to 7600 Hz
7600 Hz to 8400 Hz
8.4 kHz to 50 kHz.
0
13
dBrnC0
N
RP
75
dBm0p
N
RS
53
dBm0
Power Supply Rejection,
Transmit
PSR
X
36
30
dBC
dBC
Power Supply Rejection,
Receive
PSR
R
36
40
36
dBC
dBC
dBC
Spurious Out-of-Band
Signals at the Chan-
nel Outputs
SOS
30
40
30
dB
dB
dB
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