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| 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 output for passive lowpass filter. Single ended tristate output. Ground. Lock detector output. Logic Low when PLL is unlocked. Comparison frequency input.Internal feedback resistor for AC coupling. Input frequency range 20MHz to 200MHz. 9 10 11 12 13 14 15 16 CLK DATA LE DOA FR TEST OV OR Shift register clock input. 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. Buffered phase detector output to a differential lowpass filter. Buffered phase detector output to a differential lowpass filter. NIPPON PRECISION CIRCUITS-2 SM5158A SPECIFICATION Absolute Maximum Ratings Parameter Supply voltage range Input voltage range Operating temperature range Storange temperature Solding temperature Solding time Symbol VDD - VSS VIN TOPR Tstg Tsld Rating -0.3 to 7.0 VSS-0.3 to VDD+0.3 -30 to +85 -40 to 125 255 10 Unit V V deg.C deg.C deg.C S tsld Electrical Characteristics Rating Parameter Supply Voltage Supply current in operating mode Symbol VDD IDD Condition FIN 200MHz , VFIN=0.5Vp-p sine wave XIN=20MHz, VFIN=0.5Vp-p sine wave min 2.7 typ max 5.5 Unit V mA 10 23.5 Supply current in stanby mode FIN maximum operating frequency IDD2 fmax1 R/N latch's all bits="0" FIN=0.5Vp-p , sine wave (VDD=2.7V) FIN=0.5Vp-p , sine wave (VDD=4.5V) 100 200 20 35 120 240 10 uA XIN maximum operating frequency fmax2 XIN=0.5Vp-p , sine wave(VDD=2.7V) XIN=0.5Vp-p , sine wave(VDD=4.5V) MHz FIN minimum operating frequency XIN minimum operating frequency FIN input voltage XIN input voltage CLK, DATA, LE HIGH-level input voltage CLK, DATA, LE LOW-level input voltage FIN HIGH-level input current FIN LOW-level input current XIN HIGH-level input current XIN LOW-level input current FV, DOP, LD,DOA, FR, OV, OR, 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 fmin1 fmin2 VFIN VXIN VIH VIL IIH1 IIL1 IIH2 IIL2 IOH FIN=0.5Vp-p , sine wave FIN=0.5Vp-p , sine wave fFIN = 20 to 200MHz sine wave , AC coupling fXIN = 1 to 35MHz sine wave , AC coupling 0.5 0.5 VDD-0.3 20 1 VDD-0.5 VDD-0.5 Vp-p Vp-p uA 0.3 uA uA uA uA uA mA VIH=VDD VIL=0V VIH=VDD VIL=0V VOH=VDD-0.4V 0.4 100 100 100 100 IOL VOL=0.4V 0.4 mA tsu1 tsu2 tH 80 80 80 ns ns ns NIPPON PRECISION CIRCUITS-3 SM5158A Serial data input timing DATA tSU1 CLK tH tSU2 LE Phase detector timing FR FV DOP DOA OR OV LD NIPPON PRECISION CIRCUITS-4 SM5158A DIVIDER DATA SETTING PROCEDURE CLK 1 DATA MSB 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LSB Control LE 17 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 CONTROL LSB MSB 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 R2 DOP R1 DOA C RL VCO OR OV 510K c. Differential filter DOP R2 C DOA R1 OR VCO OV R1 R2 C + NIPPON PRECISION CIRCUITS-6 SM5158A PACKAGE DIMENSIONS UNIT:mm 16pin SSOP 4.4 0.2 6.2 0.3 0.6TYP 6.8 0.3 0.15 - 0.05 + 0.10 0.05 0.05 1.5 0.1 0.36 0.1 0.8 0 10 0.4 0.2 16pin DIP 0 to 15 6.5 0.2 19.5 0.3 7.62 3.4 0.1 0.86 typ. 2.54 0.5 0.1 1.5 - 0.05 + 0.30 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. 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 INC. 3.3 0.2 4.0 0.3 0.10 0.3 + 0.05 - NIPPON PRECISION CIRCUITS-7 |
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