AZ88923 Datasheet, PDF (1/5 Pages) Arizona Microtek, Inc – High-Speed Limiting Post Amplifier

ARIZONA MICROTEK, INC.
AZ88923
High-Speed Limiting Post Amplifier
FEATURES
• Up to 2.5Gbps operation
• Differential PECL Inputs
• Differential PECL Outputs
• Open Drain TTL/CMOS LOS Output
• TTL/CMOS Enable Input
• High-Speed SiGe Process
DESCRIPTION
PACKAGE AVAILABILITY
PACKAGE
PART NUMBER MARKING NOTES
TSSOP 10
AZ88923U
AZ88
923
1,2,3
1 Add R1 at end of part number for 7 inch (1K parts), R2 for 13 inch (2.5K
parts) Tape & Reel.
2 Date code format: “Y” or “YY” for year followed by “WW” for week.
3 Parts marked JNB for date codes prior to 4WW (prior to 2004).
4 Date code “YWW” or “YYWW” on underside of part.
The AZ88923 is a limiting post amplifier usable at data rates up to 2.5Gbps. It is ideal for use as a post
amplifier following a transimpedance amplifier.
The AZ88923 contains a programmable loss of signal detect function to determine when the input signal has
been lost. This information can be used with the /EN input pin to disable the output under LOS conditions. The
detect threshold can be set with a resistor divider between V_CC and V_REF. The LOS output is an open drain
compatible with CMOS and TTL.
The outputs produce standard PECL 100K voltage compensated levels.
PIN DESCRIPTION
PIN
FUNCTION
D_IN, /D_IN
D_OUT, /D_OUT
/EN
Differential Inputs
PECL Outputs
Output Enable
LOS_LVL
LOS
LOS Threshold
LOS Output
V_REF
V_CC
GND
Reference Voltage Output
Positive Voltage
Ground
D_IN
/D_IN
BLOCK DIAGRAM
D_OUT
/D_OUT
/EN 1
10 V_CC
/EN
D_IN
2
9 D_OUT
TSSOP-10
/D_IN 3
8 /D_OUT
V_REF
4
7 LOS
V_REF
LOS_LVL
LOS
LOS_LVL
5
6 GND
PINOUT ASSIGNMENT
1630 S. STAPLEY DR., SUITE 127 • MESA, ARIZONA 85204 • USA • [phone] • FAX [phone]
www.azmicrotek.com