Document
Ordering number : EN4758B
CMOS LSI
LC7218, 7218M, 7218JM
PLL Frequency Synthesizer for Electronic Tuning in AV Systems
Overview
The LC7218, LC7218M and LC7218JM are PLL frequency synthesizers for electronic tuning. The LC7218, LC7218M and LC7218JM are optimal for AM/FM tuner circuits that require high mounting densities.
Package Dimensions
unit: mm 3067-DIP24S
[LC7218]
Features
• These products feature a rich set of built-in functions for AV applications, including reference frequency and unlock detection circuits, I/O ports and a generalpurpose counter.
Functions
• Programmable dividers — FMIN pin: 130 MHz at 70 mVrms and 160 MHz at 100 mVrms input (built-in prescaler) — AMIN pin: Pulse swallower and direct division techniques • Reference frequencies: Ten selectable frequencies: 1, 5, 9, 10, 3.125, 6.25, 12.5 25, 50 and 100 kHz • Output ports: 7 pins Complementary outputs: 2 pins N-channel open drain outputs: 5 pins • Input ports: 2 pins • General-purpose counter: For measuring IF and other signals (Also used for station detection when functioning as an IF counter.) — HCTR pin: Frequency measurement (for inputs up to 70 MHz) — LCTR pin: Frequency and period measurement • PLL unlock detection circuit Detects phase differences of 0.55, 1.11, 2.22 and 3.33 µs. • Controller clock output: 400 kHz • Clock time base output: 8 Hz • Serial data I/O — Supports CCB format communication with the system controller. • Package: LC7218: DIP24S LC7218M: MFP24 LC7218JM: MFP24S
• 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: DIP24S
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
63096HA (OT)/42895TH (OT) No. 4758-1/16
LC7218, 7218M, 7218JM
Package Dimensions
unit: mm 3045B-MFP24
[LC7218M]
unit: mm 3112-MFP24S
[LC7218JM]
SANYO: MFP24
SANYO: MFP24S
Pin Assignments
No. 4758-2/16
LC7218, 7218M, 7218JM Block Diagram
Pin Symbols XIN, XOUT: FMIN, AMIN: CE, CL, DI, DO: OUT0 to OUT6: IN0, IN1: HCTR, LCTR: PD1, PD2: SYC: Crystal oscillator (7.2 MHz) Local oscillator signal input Serial data I/O Output ports Input ports General-purpose counter inputs Charge pump outputs Control clock (400 kHz)
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter Maximum supply voltage Input voltage Symbol VDD max VIN (1) VIN (2) VOUT (1) Output voltage VOUT (2) VOUT (3) VOUT (4) Allowable power dissipation Pd max VDD CE, CL, DI, IN0, IN1 Input pins other than VIN (1) DO, SYC OUT1, OUT2 OUT3 to OUT6, OUT0 Output pins other than VOUT (1), VOUT (2) and VOUT (3) Ta ≤ 85°C :LC7218 :LC7218M :LC7218JM Operating temperature Storage temperature Topr Tstg Conditions Ratings –0.3 to +7.0 –0.3 to +7.0 –0.3 to VDD + 0.3 –0.3 to +7.0 –0.3 to VDD + 0.3 –0.3 to +15 –0.3 to VDD + 0.3 350 300 200 –40 to +85 –55 to +125 °C °C mW Unit V V V V V V V
No. 4758-3/16
LC7218, 7218M, 7218JM Allowable Operating Ranges at Ta = –40 to +85°C, VSS = 0 V
Parameter Supply voltage Symbol VDD (1) VDD (2) VIH (1) VIH (2) VIL (1) VIL (2) VOUT (1) VOUT (2) fIN (1) fIN (2) Input frequency fIN (3) fIN (4) fIN (5) fIN (6) Crystal oscillators for which operation is guaranteed Xtal VIN (1) VIN (2) Input amplitude VIN (3) VIN (4) VIN (5) Note: 1. DV 1 0 0 SP * 1 0 Input frequency 10 to 130 (160) MHz 2 to 40 MHz 0.5 to 10 MHz 1/2 divider 1/16, 17 swallow 12-bit main divider Input pin FMIN AMIN AMIN VDD VDD: Crystal oscillator guaranteed operation CE, CL, DI, IN0, IN1 LCTR: Pulse waveform, DC coupling*4 CE, CL, DI, IN0, IN1 LCTR*4 DO, SYC OUT3 to OUT6, OUT0 XIN: Sine wave capacitor coupling, VDD (2) FMIN: Sine wave capacitor coupling, VDD (1)*1 AMIN: Sine wave capacitor coupling, VDD (1)*1 HCTR: Sine wave capacitor coupling, VDD (1)*2 LCTR: Sine wave capacitor coupling, VDD (1)*3 LCTR: Pulse wave DC coupling, VDD (1)*4 XIN-XOUT: CI ≤ 50 Ω XIN: Sine wave capacitor coupling, VDD (1) FMIN: Sine wave capacitor coupling, VDD (1) AMIN: Sine wave capacitor coupling, VDD (1) HCTR: Sine wave capacitor coupling, VDD LCTR: Sine wave capacitor coupling, VDD (1)*2 (1)*3 1.0 10 0.5 10 15 1.0 3.0 0.5 0.070 (0.100)*5 0.070 0.070 (0.100)*6 0.070 7.2 7.2 Conditions min 4.5 3.5 2.2 0.7 VDD (1) 0 0 typ max 6.5 6.5 6.5 VDD (1) 0.7 0.3 VDD (1) 6.5 13 8.0 130 (160)*5 40 60 (70)*6 500 20 × 103 8.0 1.5 1.5 1.5 1.5 1.5 Unit V V V V V V V V MHz MHz MHz MHz kHz Hz MHz Vrms Vrms Vrms Vrms Vrms
Input high level voltage
Input low level voltage
Output voltage
q
— —
q q
—
q q q
2. 3. 4. 5. 6.
DV and SP are bits in the serial data. *: don’t care Frequency measurement Frequency measurement Period measurement fIN (2): 10 to 160 MHz/VIN (2) 0.100 Vrms (minimum) fIN (4): 10 to 70 MHz/VIN (4) 0.100 Vrms (minimum)
No. 4758-4/16
LC7218, 7218M, 7218JM Electrical Characteristics for the Allowable Operating Ranges
Parameter Symbol Rf (1) Rf (2) Internal feedback resistance Rf (3) Rf (4) Rf (5) Hysteresis VH IIH .