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Details, datasheet, quote on part number:LMX2335USLBX
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| Part: | LMX2335USLBX |
| Category: | Timing Circuits => PLL (Phase locked loop) => Dual Integer PLLs |
| Description: | LMX2335U - 1.2 GHZ /1.2 GHZ Pllatinum Low Power Dual Frequency Synthesizer For RF Personal Communications, Package: Evaluation Board, Pin Nb=- |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LMX2335USLBX datasheet File size : 3202 kB |
| Request For quote: | Find where to buy LMX2335USLBX
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Datasheet text preview:
LMX2335U/LMX2336U PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications
November 2002
LMX2335U/LMX2336U PLLatinumTM Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications LMX2335U 1.2 GHz/1.2 GHz LMX2336U 2.0 GHz/1.2 GHz
General Description
The LMX2335U and LMX2336U devices are high performance frequency synthesizers with integrated dual modulus prescalers. The LMX2335U and LMX2336U devices are designed for use in applications requiring two RF phase-locked loops. A 64/65 or a 128/129 prescale ratio can be selected for each RF synthesizer. Using a proprietary digital phase locked loop technique, the LMX2335U and LMX2336U devices generate very stable, low noise control signals for the RF voltage controlled oscillators. Both RF synthesizers include a two-level programmable charge pump. The RF1 synthesizer has dedicated Fastlock circuitry. Serial data is transferred to the devices via a three wire interface (Data, LE, Clock). Supply voltages from 2.7V to 5.5V are supported. The LMX2335U and the LMX2336U feature very low current consumption: LMX2335U (1.2 GHz) 3.0 mA, LMX2336U (2.0 GHz) 3.5 mA at 3.0V. The LMX2335U device is available in 16-pin TSSOP, and 16-pin Chip Scale Package (CSP) surface mount plastic packages. The LMX2336U device is available in 20-Pin TSSOP, 24-Pin CSP, and 20-Pin UTCSP surface mount plastic packages.
Features
n Ultra Low Current Consumption n Upgrade and Compatible to the LMX2335L and LMX2336L devices n 2.7V to 5.5V operation n Selectable Synchronous or Asynchronous Powerdown Mode: ICC-PWDN = 1 µA typical at 3.0V n Selectable Dual Modulus Prescaler RF1: 64/65 or 128/129 RF2: 64/65 or 128/129 n Selectable Charge Pump TRI-STATE ® Mode n Programmable Charge Pump Current Levels RF1 and RF2: 0.95 or 3.8 mA n Selectable FastlockTM Mode for the RF1 Synthesizer n Push-Pull Analog Lock Detect Mode n LMX2335U is available in 16-Pin TSSOP and 16-Pin CSP n LMX2336U is available in 20-Pin TSSOP, 24-Pin CSP, and 20-Pin UTCSP
Applications
n Mobile Handsets (GSM, GPRS, W-CDMA, CDMA, PCS, AMPS, PDC, DCS) n Cordless Handsets (DECT, DCT) n Wireless Data n Cable TV Tuners
Thin Shrink Small Outline Package (MTC16)
Thin Shrink Small Outline Package (MTC20)
10136787
10136780
Chip Scale Package (SLB16A)
Chip Scale Package (SLB24A)
Ultra Thin Chip Scale Package (SLE20A)
10136795
10136788
10136781
TRI-STATE ® is a registered trademark of National Semiconductor Corporation. FastlockTM, MICROWIRETM and PLLatinumTM are trademarks of National Semiconductor Corporation.
© 2002 National Semiconductor Corporation
DS101367
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LMX2335U/LMX2336U
LMX2335U Functional Block Diagram
10136789
LMX2336U Functional Block Diagram
10136701
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LMX2335U/LMX2336U
Connection Diagrams
LMX2335U Thin Shrink Small Outline Package (TM) (Top View) LMX2335U Chip Scale Package (SLB) (Top View)
10136702
10136738
LMX2336U Thin Shrink Small Outline Package (TM) (Top View)
LMX2336U Chip Scale Package (SLB) (Top View)
10136703
10136736
LMX2336U Ultra Thin Chip Scale Package (SLE) (Top View)
10136796
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