ASAHI KASEI [AK2500 B]
MS0005- E - 00 - 1 - 199 9 /12
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.
PACKAGE
- 24 pin SOP
FEATURE
- “ Robust ” DSP based line receiver
- AK2500B Provides Complete Analog Line
Receiver for DS3 and STS-1 Applications
- Pr ovides Line Equalization, and Clock and Data
Recovery Functions
APPLICATIONS
- Interfacing network transmission equipment
such as SONET multiplexor and M13 to a DSX-
3 cross connect.
- Interfacing customer premises equipment to a
line.
BLOCK DIAGRAM
GAIN and LINE
EQUALIZATION
DATA
RECOVERY
LOS
LOGIC
CLOCK
RECOVERY
RPDATA
RNDATA
RCLK
RLOS
RIN
RLOL
VDDA
VDDD
VDDC
VSSC
VSSD
VSSA
TREF BREF
EXCLK
LOSTHR
IREF
MODE2 MODE1 RESET