S3092 AMCC (Applied Micro Circuits Corp), S3092 Datasheet - Page 8

• Manufacturer Part Number: S3092
• Description: Sonet/sdh/atm OC-192 1:16 Receiver With CDR And Postamp
• Manufacturer: AMCC (Applied Micro Circuits Corp)

S3092 – SONET/SDH/ATM OC-192 1:16
Receiver with CDR and Postamp
Table 2. Input Pin Description and Assignment
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SERDATIP
SERDATIN
REFCLKP
REFCLKN
CAP1
CAP2
LCKREFN
SDN
RSTB
TESTB
TSTSIG
Pin Name
Diff.CML
Diff.ECL
Analog
LVTTL
LVTTL
LVTTL
LVTTL
Level
ECL
I/O
I
I
I
I
I
I
I
I
Pin #
C14
G1
B1
C1
B4
C4
A9
A7
C6
A6
J1
Receive Serial Data Input. Differential high frequency serial data input to limiting
postamp for small signal gain. Use Coplanar Waveguide Structure for best
results. See Layout Recommendation application note. See Characterization
Report for S
BER plot.
Reference Clock. Differential reference clock input at 155.52 MHz. The PLL will
lock onto this reference in the absence of serial input data. Internally biased and
terminated.
Loop Filter Capacitors. The external loop filter capacitor and resistors are con-
nected to these pins. Used to adjust the loop filter performance. See Figure 12.
Lock to Reference. Active Low. When active, the PLL will be forced to lock to the
local reference clock input [REFCLK]. RX622MCK remains locked to the VCO.
Signal Detect. Active Low. A single-ended 10K ECL input to be driven by the
external optical receiver module to indicate a loss of received optical power.
When SDN is inactive, the data on the Serial Data In (SERDATIP/N) pins will be
internally forced to a constant zero, and the PLL will be forced to lock to the REF-
CLK inputs. When SDN is active, data on the SERDATIP/N pins will be pro-
cessed normally. If not used, leave open.
Master Reset. Active Low. Reset input for the device. For correct reset, this input
must be asserted Low for 100 ns.
Test Enable. Active Low. Used during production test to bypass the VCO in the
PLL. Pull High for normal operation.
Test Input Signal. Active Low. Signal used for production test. Pull High for nor-
mal operation.
11
plot. See Characterization Report for Differential Input Voltage vs.
Description
Revision A – February 22, 2002
DEVICE SPECIFICATION