WIRELESS COMMUNICATIONS DIVISION
Block Diagram
TQ5M44
RF
Mixer IC
LO
LO BYPASS
RF INPUT
Product Description
The TQ5M44 is a RFIC downconverter designed for FLEX and
ReFLEX paging and mobile applications. The TQ5M44 is intended for
use in the Motorola Flex chipset. The integrated circuit operates at low
voltage (1V).
Absolute Maximum Ratings
BY
Min Max Units
0.90 V
-40 +85 C
-55 +85 C
LO TANK/BIASLO INPUT
GND
IFRF
GND
IF OUTPUT/
BIAS
100 mW
+20 dBm
Features
• Single 1V operation
• Low Current Operation
• Few external components
• High IP3
• Broadband Performance
• Small SOT 23-6
Plastic Package
Applications
• FLEX wireless
applications
• ReFLEX wireless
applications
-0.3 VDD+0.3 V
Motorola, FLEX, and ReFLEX are trademarks of Motorola, Inc.
TQS Wireless Communications (503) 615-9000
2300 NE Brookwood Parkway FAX:(503) 615-8900
Hillsboro, OR 97124 1 Rev. A 12/7/98
TQ5M44
VHF Band
Electrical Specifications: Devices screened to the following test conditions
Test Conditions: VDD = 1.0 V, TA=25° C RF=132-174MHz, LO=114.1 – 156.1MHz, IF=17.9MHz,
LO = -20dBm Input
Parameter Min Typ Max Units
Conversion Gain
LO Buffer Current
IF Buffer Current
Total Supply Current
7 dB
250 µA
500 µA
750 1000 µA
TQS Wireless Communications (503) 615-9000
2300 NE Brookwood Parkway FAX:(503) 615-8900