Semiconductor. Todo Sobre El Circuito Integrado Lc72131. Su Terminales, Voltajes, Corrientes y Usos

Ordering number : EN4921B

CMOS LSI

LC72131, 72131M
AM/FM PLL Frequency Synthesizer

Overview
The LC72131 and LC72131M are PLL frequency synthesizers for use in tuners in radio/cassette players. They allow high-performance AM/FM tuners to be implemented easily.

Package Dimensions
unit: mm 3059-DIP22S
[LC72131]

Applications
PLL frequency synthesizer

Functions
• High speedprogrammable dividers — FMIN: 10 to 160 MHz ..........pulse swallower (built-in divide-by-two prescaler) — AMIN: 2 to 40 MHz ..............pulse swallower 0.5 to 10 MHz ...........direct division • IF counter — IFIN: 0.4 to 12 MHz ...........AM/FM IF counter • Reference frequencies — Twelve selectable frequencies (4.5 or 7.2 MHz crystal) 1, 3, 5, 9, 10, 3.125, 6.25, 12.5, 15, 25, 50 and 100 kHz •Phase comparator — Dead zone control — Unlock detection circuit — Deadlock clear circuit • Built-in MOS transistor for forming an active low-pass filter • I/O ports — Dedicated output ports: 4 — Input or output ports: 2 — Support clock time base output • Serial data I/O — Support CCB format communication with the system controller. • Operating ranges — Supply voltage........................4.5 to 5.5V — Operating temperature............–40 to +85°C • Packages — DIP22S/MFP20
• CCB is a trademark of SANYO ELECTRIC CO., LTD. • CCB is SANYO’s original bus format and all the bus addresses are controlled by SANYO.

SANYO: DIP22S

unit: mm 3036B-MFP20
[LC72131M]

SANYO: MFP20

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno,Taito-ku, TOKYO, 110 JAPAN
62096HA (OT)/O3195HA (OT)/92294TH (OT) No. 4921-1/23

LC72131, 72131M Pin Assignments

No. 4921-2/23

LC72131, 72131M Block Diagram

No. 4921-3/23

LC72131, 72131M

Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter Supply voltage Symbol VDD max VIN1 max Maximum input voltage VIN2 max VIN3 max VO1 max Maximum output voltage VO2 maxVO3 max IO1 max Maximum output current IO2 max IO3 max Allowable power dissipation Operating temperature Storage temperature Pd max Topr Tstg VDD CE, CL, DI, AIN XIN, FMIN, AMIN, IFIN IO1, IO2 DO XOUT, PD BO1 to BO4, IO1, IO2, AOUT BO1 AOUT, DO BO2 to BO4, IO1, IO2 Ta ≤ 85°C LC72131: DIP22S LC72131M: MFP20 Pins Ratings –0.3 to +7.0 –0.3 to +7.0 –0.3 to VDD + 0.3 –0.3 to +15 –0.3 to +7.0 –0.3 to VDD+ 0.3 –0.3 to +15 0 to 3.0 0 to 6.0 0 to 10.0 350 180 –40 to +85 –55 to +125 Unit V V V V V V V mA mA mA mW °C °C

Allowable Operating Ranges at Ta = –40 to +85°C, VSS = 0 V
Parameter Supply voltage Input high-level voltage Input low-level voltage Output voltage V O2 fIN1 fIN2 Input frequency fIN3 fIN4 fIN5 VIN1 VIN2-1 VIN2-2 Input amplitude VIN3 VIN4 VIN5-1 VIN5-2 Supported crystals XtalSymbol VDD VIH1 VIH2 VIL VO1 VDD CE, CL, DI IO1, IO2 CE, CL, DI, IO1, IO2 DO BO1 to BO4, IO1, IO2, AOUT XIN FMIN AMIN AMIN IFIN XIN FMIN FMIN AMIN AMIN IFIN IFIN XIN, XOUT VIN1 VIN2 VIN3, SNS = 1 VIN4, SNS = 0 VIN5 fIN1 f = 10 to 130 MHz f = 130 to 160 MHz fIN3, SNS = 1 fIN4, SNS = 0 fIN5, IFS = 1 fIN6, IFS = 0 * Pins Conditions min 4.5 0.7 VDD 0.7 VDD 0 0 0 1 10 2 0.5 0.4 400 40 70 40 40 40 70 4.0 typmax 5.5 6.5 13 0.3 VDD 6.5 13 8 160 40 10 12 1500 1500 1500 1500 1500 1500 1500 8.0 Unit V V V V V V MHz MHz MHz MHz MHz mVrms mVrms mVrms mVrms mVrms mVrms mVrms MHz

Note: * Recommended crystal oscillator CI values: CI ≤ 120Ω (For a 4.5 MHz crystal) CI ≤ 70Ω (For a 7.2 MHz crystal) Crystal oscillator: HC-49/U (manufactured by Kinseki, Ltd.), CL = 12 pF C1 = C2 = 15 pF The circuit constantsfor the crystal oscillator circuit depend on the crystal used, the printed circuit board pattern, and other items. Therefore we recommend consulting with the manufacturer of the crystal for evaluation and reliability.

No. 4921-4/23

LC72131, 72131M Electrical Characteristics for the Allowable Operating Ranges at Ta = –40 to +85°C, VSS = 0 V
Parameter Symbol Rf1 Built-in feedback resistance...