Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.
This specification defines the requirements for a transmitter modulator and fractionalN synthesizer IC to be used in cellular telephones which employ the North American Dual Mode Cellular System (IS136).
SA9025 Maximum Ratings
SYMBOL
PARAMETER
VALUE
UNIT
MIN.
MAX.
VCC
Supply voltage
-0.3
+4.5
V
VIN
Voltage applied to any other pin
-0.3
VCC+0.3
V
PN
Power dissipation, TA = 25°C (still air)
980
mW
TJMAX
Operation junction temperature
TBD
°C
PMAX
Power input/output
+10/+14
dBm
IMAX
DC current into any I/O pin
-10
+10
mA
TSTG
Storage temperature
65
+150
°C
To
Operating temperature
-40
+85
°C
SA9025 Features
• Low current from 3.75V supply • Low phase noise • Main loop with internal charge pump and fractional compensation • 3line serial interface bus • Power down for the synthesizers • Speedup mode for faster switching
SA9025 Typical Application
• Cellular phones • Portable batterypowered radio equipment. • Reference and clock buffers • Control logic for programming and power down modes