參數(shù)資料
型號: T8538A
廠商: Lineage Power
元件分類: Codec
英文描述: Quad Programmable Codec(四通道可編程編解碼器)
中文描述: 四可編程編解碼器(四通道可編程編解碼器)
文件頁數(shù): 23/42頁
文件大小: 1019K
代理商: T8538A
Lucent Technologies Inc.
23
Advance Data Sheet
October 2000
T8538A Quad Programmable Codec
Electrical Characteristics
(continued)
Analog Interface
The following specifications pertain to the analog SLIC interface for each channel.
Table 7. Analog Interface
Table 8. Power Dissipation
Power measurements are made at BCLK = 2.048 MHz, DCLK = 2.048 MHz, no inputs from serial interface, inter-
face latches set as outputs, outputs unloaded.
Parameter
Symbol
R
VF
X
I
V
IX
Test Conditions
0.25 < V
IN
< (V
DDX
0.25) V
Relative to ground.
Signal should be capacitively
coupled to VF
X
I.
Min
100
1.4
Typ
1.5
Max
300
1.6
Unit
k
V
Input Resistance
dc Input Voltage
Load Resistance at VF
R
OP
and
VF
R
O
N
(differential)
R
L
5-8881F
7.5
k
Output Resistance
R
O
Digital input code correspond-
ing to idle PCM code (
μ
-law).
Digital input code correspond-
ing to idle PCM code (
μ
-law).
R
L
= 100 k
2
10
Output Offset Voltage Between VF
R
OP
and
VF
R
O
N
Output Offset Voltage Between
VF
R
OP
and
VF
R
O
N, Standby Mode
Common-mode Output Voltage, Active
Mode
V
OS
100
0
100
mV
V
OSS
20
0
20
mV
V
OCM
Digital input code correspond-
ing to alternating ± zero
μ
-law
PCM code.
1.4
1.5
1.6
V
Common-mode Output Voltage, Standby
Mode
V
OCMS
1.4
1.5
1.6
V
Parameter
Symbol
I
DDS
I
DD1
I
DD1
Test Conditions
Min
Typ
14
130
55
Max
Unit
mW
mW
mW
All Channels in Standby, Dissipation for One Channel
One Channel Active, Dissipation for Active Channel
Four Channels Active, Dissipation for One Channel
R
L
R
L
R
L
R
L
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