BU2624AF

Features:

1) Built-in high-speed prescaler can divide 130MHzVCO.
2) Low current dissipation (during operation: 6.0mA, PLL OFF: 300A Typ.)
3) Seven standard frequencies: 50kHz, 25kHz, 12.5kHz, 10kHz, 9kHz, 5kHz, and 1kHz.
4) Two counters for intermediate frequency detection
5) Unlock detection circuit
6) Five output ports (open drain)
7) SD input port
8) Two charge pump outputs
9) Serial data input (CE, CK, DA)
10) Control of phase comparison output


Application

Car stereos, high-fidelity audio systems, radio cassettes, receivers, and other frequency generating devices


Pinout




Specifications

Parameter	Symbol	Limits	Unit	Condltions
Power supply voltage	VDD	-0.3~+7.0	V	VDD
Maximum input voltage1	VIN1	-0.3~+7.0	V	CE,CK DA,SD
Maximum input voltage2	VIN2	-0.3~VDD+0.3	V	XIN,FMIN,AMIN,IF1,IF2,SD
Maximum output voltage1	VOUT1	-0.3~+10.0	V	P0,P1,P2,P3,P4,CD
Maximum output voltage2	VOUT2	-0.3~VDD+0.3	V	PD1,PD2,XOUT
Maximum output current	IOUT	0~4.0	mA	P0,P1,P2,P3,P4,CD
Power dissipation	Pd	450*	mW
Operating temperature	Topr	-40~+85
Storage temperature	Tstg	-55~+125

*Reduced by mW for each increase in Ta of 1 over 25


Description

The BU2624AF is a PLL frequency synthesizer IC designed for use in car stereos, high-fidelity audio systems, and CD radio cassettes.

Featuring of BU2624AF low current dissipation, low superfluous radiation, two frequency measurement counter systems, and two phase comparison outputs, this chip is ideal for high-performance multi-band systems.