AK2504A

Features:

- "Robust" DSP based line transceiver
- Provides Complete Analog Line Transmitter and Receiver function for DS3, STS-1 and E3 Applications
- Transmit Pulse Level Adjustment
- Provides Line Equalization, and Clock and Data Recovery Functions
- Compliance with Bellcore GR-499-CORE and GR-253-CORE, ANSI T1.102, T1.404,
- Compliance with ITU-T G.703 and G.823
- Local/Remote Loopback functions
- B3ZS/HDB3 Encoder/Decoder
- Low voltage supply : +3.3V


Pinout




Specifications

Parameter	Symbol	Min	Max	Units
DC Supply (referenced to GND) (Note 1)	V+	-0.3	4.6	V
Input Voltage, Any Pin	Vin	GND-0.3	(V+)+0.3	V
Input Current, Any Pin (Note 2)	Iin	-	10	MA
Ambient Operating Temperature	TA	-40	85	°C
Storage Temperature	Tstg	-65	150	°C
Power Dissipation	PD	-	1	W

WARNING: Operation at or beyond these limits may result in permanent damage to the device.
                  Normal operation is not guaranteed at these extremes.
Note; 1.GND=VSSV=VSSP=VSSB=VSST=VSSD=VSSS=0V
          2.Transient currents of up to 100 mA will not cause SCR latch up.


Description

The AK2504A is a DSP based line transceiver. It provides the analog transmit/receive line interface functions for DS3 (44.736MHz) /STS-1(51.84MHz) or E3(34.368MHz) interface.Transmitter includes on-hip pulse shaper, B3ZS/HDB3 Encoder. Pulse level adjustment function is very useful to put a pulse into pulse mask for any customer's system.
AK2504A receiver includes root-f equalizer, automatic-gain control, clock and data recovery, B3ZS/HDB3 Decoder, Loss-Of-Signal and Loss-Of-Lock alarm function.Local and Remote Loop-back function is included for system level trouble shooting.The device operates at a single +3.3 Volt supply and is transparent to the framing format.