SM5158A

SM5158A NIPPON PRECISION CIRCUITS INC. Serial input PLL frequency synthesizer PIN OUT 16-pin SSOP OVERVIEW The SM5158A is a serial data programmable PLL Frequency Synthesizer LSI fabricated in NPC's proprietary Molybdenum-gate CMOS technology. Ratios of reference frequency divider and input frequency divider can be independently set. FEATURES - Up to 200MHz input frequency (VDD=4.5V) - Up to 35MHz reference frequency (VDD=4.5V) - 5 to 65535 programmable reference frequency divider ratio - 1056 to 65535 programmable input frequency divider ratio - Lock detector - Either Active or Passive filter can be externally used. - 16-pin plastic DIP and 16-pin S-SOP - Molybdenum gate CMOS structure XIN XOUT FV VDD DOP VSS LD FIN 1 16 8 9 OR OV TEST FR DOA LE DATA CLK 158A 16-pin DIP XIN XOUT FV VDD DOP VSS LD FIN 1 16 8 9 OR OV TEST FR DOA LE DATA CLK NIPPON PRECISION CIRCUITS-1 SM158AP SM5158AS BLOCK DIAGRAM XIN XOUT 16 BIT COUNTER LOCK DETECTOR FR LD DOA DOP OR 16 BIT LATCH DATA CLK 17 BIT SHIFT REGISTER PHASE DETECTOR CHARGE PUMP LE FIN 16 BIT LATCH BUFFER OV FV 16 BIT N COUNTER PIN DESCRIPTION Number 1 2 3 4 5 6 7 8 Name XIN XOUT FV VDD DOP VSS LD FIN Description To connect external crystal and capacitor, or external clock input pin. To connect external crystal and capacitor,or oscilator output signal can be available at this pin. Buffered input frequency divider output.phase detector input Positive supply pin. Apply +2.7 to 5.5 Volts. Charge pump ...