參數(shù)資料
型號(hào): CS61881
英文描述: Octal E1 Analog Front EndLine Interface Units
中文描述: 八路素E1模擬前端底線接口單元
文件頁(yè)數(shù): 7/28頁(yè)
文件大小: 461K
代理商: CS61881
CS61881
DS451PP3
7
SWITCHING CHARACTERISTICS
(TA = -40
°
C to 85
°
C; TVCC, RVCC = 3.3 V
±
5%;
GND = 0 V; Inputs: Logic 0 = 0 V, Logic 1 = RVCC; See Figures 1, 2, & 3)
Notes: 13.
Output load capacitance = 50 pF.
Parameter
Symbol
Min
Typ
Max
Units
TCLK Frequency
Transmit Pulse Width (NRZ Mode)
TCLK Duty Cycle (NRZ Mode)
2.048
244
-
MHz
nS
%
219
10
269
90
t
TCH
/t
TCPW
t
su2
t
h2
TPOS/TNEG to TCLK Falling Setup Time (NRZ Mode)
25
-
-
ns
TCLK Falling to TPOS/TNEG Hold Time (NRZ Mode)
25
-
-
ns
TCLK Pulse Width (RZ Mode)
TXOE Asserted Low to TX Driver Hi-Z
TCLK Held Low to Driver Hi-Z
Rise Time, All Digital Outputs
236
-
8
-
252
1
15
85
nS
μ
S
μ
S
ns
-
(Note 13)
t
r
t
f
-
Fall Time, All Digital Outputs
(Note 13)
-
-
85
ns
RPOS/RNEG Pulse Width
t
RPW
t
RXD
200
244
300
ns
RRTIP/RRING input to RPOS/RNEG output
-
85
-
ns
RPOS/RNEG Output to RCLK Output
-
-
5
ns
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