DW9276
DW9276
71MHz IF SAW Filter
Replaces January 2000 version, DS4087-3.0
DS4087-3.1 July 2002
DESCRIPTION
The DW9276 is a 71MHz IF SAW filter which has been
specifically designed for cellular radio architectures using
the highly integrated 鈥楽ceptre鈥欌劉 hardware platform for
GSM from AT&T Microelectronics.
Based on quartz for excellent temperature stability, the
DW9276 provides very high channel selectivity, low
Group Delay Ripple and Insertion Loss. Packaged in a
Surface Mount, low profile leadless chip carrier, the
DW9276 is ideally suited to high volume automatic
assembly systems.
INPUT
GND CASE
GND CASE
GND CASE
OUTPUT RETURN
5
4
3
2
1
6
7
INPUT RETURN
GND CASE
GND CASE
GND CASE
OUTPUT
DW9276 (U/B)
8
9
10
ABSOLUTE MAXIMUM RATINGS
DC voltage
Input Power Max
VDC
Pin
0V
10dBm
Figure 1: Pin connections
LCS10/1
NOMINAL IMPEDANCE
Input:
Output:
648鈩?// 25pF
1177鈩?// 19pF
50
鈩?/div>
TEST BOARD COMPONENTS
Input: Shunt Cap 6.8pF, Series IND 220nH, Shunt Cap 80pF
Output: Series Ind 300nH, Shunt Cap 80pF
Components: Coilcraft 1008CS Inductors: Murata 0805 Capacitors
ODERING INFORMATION
For balanced order
DW9276B
For unbalanced order
DW9276U
1/6
www.dynexsemi.com
next