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Part Number: LMX1501A
Description: The LMX1501A and the LMX1511 are high performance frequency synthesizers with integrated prescalers de...
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LMX1501A
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DataSheet
General Description
LMX1501A General Description
The LMX1501A and the LMX1511 are high performance frequency synthesizers with integrated prescalers designed for RF operation up to 1.1 GHz. They are fabricated using National's ABiC IV BiCMOS process.
The LMX1501A and the LMX1511 contain dual modulus prescalers which can select either a 64/65 or a 128/129 divide ratio at input frequencies of up to 1.1 GHz. Using a proprietary digital phase locked loop technique, the LMX1501A/11's linear phase detector characteristics can generate very stable, low noise local oscillator signals. Serial data is transferred into the LMX1501A and the LMX1511 via a three line MICROWIRETM interface (Data, Enable, Clock). Supply voltage can range from 2.7V to 5.5V.
The LMX1501A and the LMX1511 feature very low current consumption, typically 6 mA at 3V.
The LMX1501A is available in a JEDEC 16-pin surface mount plastic package. The LMX1511 is available in a TSSOP 20-pin surface mount plastic package.
LMX1501A Maximum Ratings
Power Supply Voltage
VCC .................................................................-0.3V to +6.5V
VP ...................................................................-0.3V to +6.5V
Voltage on Any Pin
with GND = 0V (VI) .........................................-0.3V to +6.5V
Storage Temperature Range (TS) .................-65 to +150
Lead Temperature (TL) (solder, 4 sec.) ......................+260
VCC .................................................................-0.3V to +6.5V
VP ...................................................................-0.3V to +6.5V
Voltage on Any Pin
with GND = 0V (VI) .........................................-0.3V to +6.5V
Storage Temperature Range (TS) .................-65 to +150
Lead Temperature (TL) (solder, 4 sec.) ......................+260
LMX1501A Features
·RF operation up to 1.1 GHz
·2.7V to 5.5V operation
·Low current consumption: ICC = 6 mA (typ) at VCC = 3V
·Dual modulus prescaler: 64/65 or 128/129
·Internal balanced, low leakage charge pump
·Small-outline, plastic, surface mount JEDEC, 0.150× wide, (1501A) or TSSOP, 0.173× wide, (1511) package
·2.7V to 5.5V operation
·Low current consumption: ICC = 6 mA (typ) at VCC = 3V
·Dual modulus prescaler: 64/65 or 128/129
·Internal balanced, low leakage charge pump
·Small-outline, plastic, surface mount JEDEC, 0.150× wide, (1501A) or TSSOP, 0.173× wide, (1511) package
LMX1501A Typical Application
·Cellular telephone systems (AMPS, NMT, ETACS)
·Portable wireless communications (PCS/PCN, Cordless)
·Advanced cordless telephone systems (CT-1/CT-1+, CT-2, ISM902-928)
·Other wireless communication systems
LMX1501A Connection Diagram
LMX1501A
PDF/DataSheet Download
- Datasheet: LMX1501A
- File Size: 376652 KB
- Manufacturer: NSC [National Semiconductor]
- Click here to Download
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