HC-5560_03 Datasheet, PDF (6/10 Pages) Intersil Corporation – PCM Transcoder

Application Diagram
FROM CODEC OR
TRANSCODER
ENCODER CLOCK
HC-5560
5V
V_DD
NRZ DATA IN
ENCODER
CLK ENC
OUT1
OUT2
LINE
INPUT
DIFF
AMP
V+
FORCE AIS
MS1
LTE
CONTROL ^MS2
RESET
OUTPUT
ENABLE
CLOCK
RESET AIS
AIS
ERROR
±
A_IN
DECODER
NRZ DATA OUT
±
B_IN
CLK DEC V_SS
DECODER CLOCK
T1, T2, T1C,
V+
PCM 30
LINE OUTPUT
MODE SELECT
LOGIC INPUTS
CLOCK RECOVERY
ALARM CLOCK
ALARM
ERROR
ERROR
MONITORS
TO CODED OR TRANSCODER
MS1 MS2 SELECTS
0
0
AMI
0
1
B8ZS
1
0
B6ZS
1
1
HDB3
Timing Waveforms
t_RCL
CLK ENC 10%
NRZ DATA IN
1
f_CL
t_FCL
90%
t_S
50%
50%
t_H
50%
OUT 1, OUT 2
t_DD
50%
50%
t_W
FIGURE 1. TRANSMITTER (CODER) TIMING WAVEFORMS
6