The DHL214D is an integrated dual frequency synthesizer with prescaler. It consists of a dual-modulus prescaler, programmable program(P) and swallow(S) counter, programmable reference(R) counter, a phase frequency detector(PFD) and a charge pump. A PLL can be completely implemented with external loop filter and voltage controlled oscillator(VCO). It is available in a 16-pin TSSOP plastic package.
Features
Two systems for transmitter and receiver
Wide frequency range (50MHz to 1.4GHz)
Wide supply voltage range (2.4V ~ 5.5V)
Selectable charge pump current (0.2mA, 0.4mA, 0.8mA, 1.6mA)
Selectable power down
Lock detection
3-wire serial interface
GP214D compatible