參數(shù)資料
型號: T7689
廠商: Lineage Power
英文描述: 5.0 V T1 Quad Line Interface(5.0 V T1四線接口)
中文描述: 5.0V的T1四線接口(5.0V的T1四線接口)
文件頁數(shù): 34/38頁
文件大?。?/td> 548K
代理商: T7689
Data Sheet
May 1998
T7689 5.0 V T1 Quad Line Interface
34
Lucent Technologies Inc.
Operating Conditions
(continued)
* A single channel (receive and transmit paths) for 50% ones density data.
For standby purposes. If a channel will never be used, connecting all V
DD
pins to the ground plane is recommended, resulting in no power
consumption.
For nominal V
DD
, T
A
= 25
°
C. Every function and channel operational with 50% ones density.
§ For V
DD
= 5.25 V and T
A
= 25
°
C. Every function and channel operational with 100% ones density.
Timing Characteristics
* 100 pF allowed for AD[7:0] (pins 69 to 76).
Table 26. Power Specifications (V
DD
= 5 V and T
A
= 25
°
C; Device power specification includes power to the
line for a specified data ones density.)
Parameter
T7689
Unit
Per Channel*: (typical)
CDR = 0, JAx = 0 (transmit, receiver in data slicing
mode, no jitter attenuator)
CDR = 1, JAx = 0 (transmit, receiver in clock recovery
mode, no jitter attenuator)
CDR = 1, JAx = 1 (transmit, receiver in clock recovery
mode, jitter attenuator active)
During Powerdown Mode (PWRDN = 1)
Quad Total:
Typical
Max
83
97
100
2.5
mW
mW
mW
mW
412
780
§
mW
mW
Table 27. Logic Interface Characteristics
An internal 50 k
pull-up is provided on the
ICT
and
RESET
pins. An internal 100 k
pull-up is provided on the
CS
,
XCLK, and BCLK pins. This requires these input pins to sink no more than 20
μ
A. All buffers use CMOS levels.
Parameter
Symbol
Test Conditions
Min
Max
Unit
Input Voltage:
Low
High
Input Leakage
Output Voltage:
Low
High
Input Capacitance
Load Capacitance*
V
IL
V
IH
I
L
GND
D
V
DDD
– 1.0
1.0
V
DDD
1.0
V
V
μ
A
V
OL
V
OH
C
I
C
L
–5.0 mA
5.0 mA
GND
D
V
DDD
– 1.0
0.5
V
DDD
3.0
50
V
V
pF
pF
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