ASAHI KASEI
[AK2500B]
AK2500B
DS3/STS-1 Analog Line Receiver
GENERAL DESCRIPTION
The AK2500B is a DSP based line receiver. It
provides the analog receive line interface
functions for a 44.736 MHz DS3 or 51.84 MHz
STS-1 interface. The device operates from a
single +3.3 Volt supply and is transparent to the
framing format.
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FEATURE
“Robust” DSP based line receiver
AK2500B Provides Complete Analog Line
Receiver for DS3 and STS-1 Applications
Provides Line Equalization, and Clock and Data
Recovery Functions
PACKAGE
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24 pin SOP
APPLICATIONS
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Interfacing network transmission equipment
such as SONET multiplexor and M13 to a DSX-
3 cross connect.
Interfacing customer premises equipment to a
line.
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BLOCK DIAGRAM
RLOL
TREF
BREF
IREF
RCLK
CLOCK
RECOVERY
EXCLK
RPDATA
RNDATA
DATA
RECOVERY
GAIN and LINE
EQUALIZATION
RIN
VDDA
VSSA
VDDD
VSSD
VDDC
VSSC
LOSTHR
RLOS
MODE2
MODE1
RESET
LOS
LOGIC
MS0005-E-00
-1-
1999/12
AKM [ ASAHI KASEI MICROSYSTEMS ]
