SM5158A NIPPON PRECISION CIRCUITS INC. Serial input PLL frequency synthesizer OVERVIEW FEATURES - Up to 200MHz input frequency (VDD=4.5V) 1 16 8 9 OR OV TEST FR DOA LE DATA CLK 16-pin DIP XIN XOUT FV VDD DOP VSS LD FIN 1 16 SM158AP - 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 158A 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. PIN OUT 16-pin SSOP 8 9 OR OV TEST FR DOA LE DATA CLK NIPPON PRECISION CIRCUITS-1 SM5158AS BLOCK DIAGRAM XIN FR 16 BIT COUNTER XOUT LOCK DETECTOR 16 BIT LATCH DATA 17 BIT SHIFT REGISTER CLK PHASE DETECTOR CHARGE PUMP LD DOA DOP OR BUFFER 16 BIT LATCH LE FIN OV FV 16 BIT N COUNTER PIN DESCRIPTION Number Name Description 1 XIN 2 XOUT 3 FV 4 VDD Positive supply pin. Apply +2.7 to 5.5 Volts. 5 DOP Charge pump output for passive lowpass filter. Single ended tristate output. 6 VSS Ground. 7 LD Lock detector output. Logic Low when PLL is unlocked. 8 FIN Comparison frequency input.Internal feedback resistor for AC coupling. 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 Input frequency range 20MHz to 200MHz. 9 CLK Shift register clock input. 10 DATA 11 LE 12 DOA 13 FR 14 TEST 15 OV Buffered phase detector output to a differential lowpass filter. 16 OR Buffered phase detector output to a differential lowpass filter. Serial data input. Latch enable input. Chrage pump output for active lowpass filter. Single ended tristate output. Buffered reference frequency devider output. Phase detector input. Test pin. Left open. NIPPON PRECISION CIRCUITS-2 SM5158A SPECIFICATION Absolute Maximum Ratings Parameter Symbol Rating Supply voltage range VDD - VSS -0.3 to 7.0 Unit V Input voltage range VIN VSS-0.3 to VDD+0.3 V Operating temperature range TOPR -30 to +85 deg.C Storange temperature Tstg -40 to 125 deg.C Solding temperature Tsld 255 deg.C Solding time tsld 10 S Electrical Characteristics Rating Parameter Symbol Supply Voltage VDD Supply current in operating mode IDD Condition min typ 2.7 FIN 200MHz , VFIN=0.5Vp-p sine wave max Unit 5.5 V 10 23.5 mA 10 uA XIN=20MHz, VFIN=0.5Vp-p sine wave Supply current in stanby mode IDD2 R/N latch's all bits="0" - - FIN maximum operating frequency fmax1 FIN=0.5Vp-p , sine wave (VDD=2.7V) 100 120 FIN=0.5Vp-p , sine wave (VDD=4.5V) 200 240 XIN maximum operating frequency fmax2 XIN=0.5Vp-p , sine wave(VDD=2.7V) 20 XIN=0.5Vp-p , sine wave(VDD=4.5V) 35 MHz FIN minimum operating frequency fmin1 FIN=0.5Vp-p , sine wave 20 XIN minimum operating frequency fmin2 FIN=0.5Vp-p , sine wave 1 FIN input voltage VFIN fFIN = 20 to 200MHz sine wave , AC coupling 0.5 VDD-0.5 Vp-p XIN input voltage VXIN fXIN = 1 to 35MHz sine wave , AC coupling 0.5 VDD-0.5 Vp-p CLK, DATA, LE HIGH-level input voltage VIH CLK, DATA, LE LOW-level input voltage VIL 0.3 uA FIN HIGH-level input current IIH1 VIH=VDD 100 uA FIN LOW-level input current IIL1 VIL=0V 100 uA XIN HIGH-level input current IIH2 VIH=VDD 100 uA XIN LOW-level input current IIL2 VIL=0V 100 FV, DOP, LD,DOA, FR, OV, OR, IOH VOH=VDD-0.4V 0.4 mA IOL VOL=0.4V 0.4 mA 80 ns 80 ns 80 ns VDD-0.3 uA uA HIGH-level output current FV, DOP, LD,DOA, FR, OV, OR, LOW-level output current DATA to CLK and CLK to LE setup time Hold time tsu1 tsu2 tH NIPPON PRECISION CIRCUITS-3 SM5158A Serial data input timing DATA tSU1 tH CLK tSU2 LE Phase detector timing FR FV DOP DOA OR OV LD NIPPON PRECISION CIRCUITS-4 SM5158A DIVIDER DATA SETTING PROCEDURE CLK 1 DATA 2 3 4 5 6 7 8 9 10 11 12 MSB 13 14 15 16 17 LSB Control LE Input data must be MSB first. Final bit(17th bit) is assigned to the control bit. Data are written into shift register at the rising edge of the CLK signal. When LE is HIGH,data is transferred from the shift register to either the latch of reference divider or input divider. Thus data must be written on the shift register while LE is remaining LOW. While all bits of the N latch to are "0", the N counter will be disabled, DOA, DOP are floating,and the supply current will be decreased. While all bits of the R latch are "O", oscillator will be disabled. While all bits of R and N latches are "0", supply current decreases to 10uA or less. 16 BIT DATA FOR R or N latch MSB LSB CONTROL Latch select bit ( 1 : R-latch, 0 : N-latch ) NIPPON PRECISION CIRCUITS-5 SM5158A LOW PASS FILTERS a. Passive filter R1 DOP VCO DOA R2 OR C OV b. Active filter VDD VDD RL C R2 VCO DOP R1 DOA OR 510KΩ OV c. Differential filter R2 DOP C DOA R1 OR VCO + OV R1 R2 C NIPPON PRECISION CIRCUITS-6 SM5158A PACKAGE DIMENSIONS UNIT:mm 4.4 0.2 6.2 0.3 16pin SSOP + 0.10 0.6TYP 0.15 - 0.05 0.36 0.1 0.8 0.05 0.05 1.5 0.1 6.8 0.3 0 10 0.4 0.2 16pin DIP 7.62 6.5 0.2 0 to 15˚ 0.86 typ. 2.54 0.5 0.1 3.3 0.2 4.0 0.3 3.4 0.1 0.10 0.3 +- 0.0 5 19.5 0.3 + 0.30 1.5 - 0.05 NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification. The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter, including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies. NIPPON PRECISION CIRCUITS INC. NIPPON PRECISION CIRCUITS INC. 4-3, 2-chome Fukuzumi, Koto-ku Tokyo, 135 -8430, JAPAN Telephon: 03-3642-6661 Facsimile: 03-3642-6698 NC9306BE 1998 1 NIPPON PRECISION CIRCUITS-7