TB2118F

TOSHIBA Bi−CMOS Integrated Circuit Silicon Monolithic TB2118F High Speed PLL For DTS TB2118F TB2118F is a high−speed phase−locked loop (PLL) LSI for car audio tuners with a built−in charge pump circuit. All functions are controlled through serial bus lines. The device is used to configure high−performance digital tuning systems. Features · Built−in high−speed program divider with built−in prescalers. FM: 30~150MHz (pulse swallowing method) AM: 1~40MHz (pulse swallowing method) Weight: 0.31g (typ.) · Phase comparator outputs are constant current output for both FM and AM. Current values can be switched using serial data. In high−speed mode for large current output seek, the lockup time between FM band edges can be set to approx. 500µs by selecting an appropriate VT range and low−pass filter constant. · RDS supported N−value data and charge pump output current data (total of 18−bits) can be selected using two resisters. · Built−in low−pass filter op−amps for FM and AM. · Built−in 20−bit binary counter for counting IF frequency. · Crystal oscillator can be used 10.25MHz or 10.35MHz. · Two output ports (open−collector output) and two I / O ports (CMOS) supported. · Package is SSOP 24 pin. (Note) Pins 1 and 24 are susceptible to surge. Take care when handling. 1 2002-10-30 Pin Connection TB2118F XO OSC CE DIN CK DOUT SR I / O-1 I / O-2 OUT-1 OUT-2 VDD2 1 2 3 4 5 6 7 8 9 10 11 12 24 XI 23 A-GND 22 REG. 21 VCC 20 AM CP 19 VT 18 FM CP 17 D-GND 16 AMVCO 15 FMVCO 14 VDD ...