0
ACTIVE
Frequency (max) (MHz) |
3600 |
Frequency (min) (MHz) |
500 |
Normalized PLL phase noise (dBc/Hz) |
-218 |
1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz) |
-100 |
Features |
Fastlock, Programmable charge-pump current, Synchronous and asynchronous power down |
Current consumption (mA) |
3.2 |
Integrated VCO |
No |
Operating temperature range (°C) |
-40 to 85 |
Rating |
Catalog |
Lock time (µs) (typ) (s) |
Loop BW dependent |
ULGA (NPE)-20-12.25 mm² 3.5 x 3.5
Using a proprietary digital-phase, locked-loop technique, the LMX243x devices generate very stable, low-noise control signals for RF and IF voltage controlled oscillators. Both the RF and IF synthesizers include a two-level programmable charge pump. Both the RF and IF PLLs have dedicated fastlock circuitry with integrated time-out counters which require only a single word write to power up or change frequencies.
The LMX243x devices are high-performance frequency synthesizers with integrated dual-modulus prescalers. A 32/33 or a 16/17 prescale ratio can be selected for the 5-GHz LMX2434 RF synthesizer. An 8/9 or a 16/17 prescale ratio can be selected for both the LMX2430 and LMX2433 RF synthesizers. The IF circuitry contains an 8/9 or a 16/17 prescaler.
Serial data is transferred to the devices through a three-wire interface (DATA, LE, CLK). A low voltage logic interface allows direct connection to 1.8-V devices. Supply voltages from 2.25 V to 2.75 V are supported.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
