參數(shù)資料
型號: T8538B
元件分類: Codec
英文描述: T8538B Quad Programmable Codec
中文描述: T8538B四可編程編解碼器
文件頁數(shù): 24/44頁
文件大?。?/td> 847K
代理商: T8538B
24
Agere Systems Inc.
Preliminary Data Sheet
August 2001
T8538B Quad Programmable Codec
Electrical Characteristics
For all specifications: T
A
=
40 °C to +85 °C, V
DD
= 3.3 V ± 5%, unless otherwise noted. Typical values are for
T
A
= 25 °C and V
DD
= 3.3 V. Input signal frequency is 1004 Hz, BCLK = 16.384 MHz, DCLK = 4.096 MHz, and coef-
ficients are at default values, unless otherwise noted.
dc Characteristics
Table 6. dc Characteristics
Parameter
Symbol
V
IL
V
IH
I
IL
Test Conditions
All inputs
All inputs
Digital, without pull-up, inputs,
GND < V
IN
< V
DD
With internal pull-up, V
IN
= GND
(INTS and RST leads)
With internal pull-up, V
IN
= V
DD
(INTS and RST leads)
Min
2.0
10
Typ
Max Unit
0.8
10
Input Voltage Low
Input Voltage High
Input Current
V
V
μ
A
240
10
10
10
μ
A
μ
A
Output Voltage Low:
All Outputs
SLIC Controls, Configured as Outputs
Output Voltage High
Output Current in High-impedance State
Line Driver (DX and DO leads) Output
Voltage High
Line Driver (DX and DO leads) Output
Voltage Low
V
OL
V
OL
V
OH
I
OZ
V
OH
I
L
= 3.2 mA
I
L
= 24 mA
I
L
=
320
μ
A
I
L
=
10 mA
0.4
1.0
30
V
V
V
μ
A
V
V
DD
0.5
30
V
DD
0.5
V
OL
I
L
= 10 mA
1.0
V
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