SANYO LC7218M, LC7218JM, LC7218 Datasheet

CMOS LSI

Ordering number : EN4758B

63096HA (OT)/42895TH (OT) No. 4758-1/16

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

PLL Frequency Synthesizer

for Electronic Tuning in AV Systems

LC7218, 7218M, 7218JM

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.

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

Package Dimensions

unit: mm

3067-DIP24S

SANYO: DIP24S

[LC7218]

• 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.

Package Dimensions

unit: mm unit: mm

3045B-MFP24 3112-MFP24S

Pin Assignments

No. 4758-2/16

LC7218, 7218M, 7218JM

SANYO: MFP24

[LC7218M]

SANYO: MFP24S

[LC7218JM]

Block Diagram

Pin Symbols

XIN, XOUT: Crystal oscillator (7.2 MHz)
FMIN, AMIN: Local oscillator signal input
CE, CL, DI, DO: Serial data I/O
OUT0 to OUT6: Output ports
IN0, IN1: Input ports
HCTR, LCTR: General-purpose counter inputs
PD1, PD2: Charge pump outputs
SYC: Control clock (400 kHz)

Specifications

Absolute Maximum Ratings at Ta = 25°C, VSS= 0 V

No. 4758-3/16

LC7218, 7218M, 7218JM

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V

DD

max V

DD

–0.3 to +7.0 V

Input voltage

V

IN

(1) CE, CL, DI, IN0, IN1 –0.3 to +7.0 V

V

IN

(2) Input pins other than VIN(1) –0.3 to VDD+ 0.3 V

V

OUT

(1) DO, SYC –0.3 to +7.0 V

Output voltage

V

OUT

(2) OUT1, OUT2 –0.3 to VDD+ 0.3 V

V

OUT

(3) OUT3 to OUT6, OUT0 –0.3 to +15 V

V

OUT

(4) Output pins other than V

OUT

(1), V

OUT

(2) and V

OUT

(3) –0.3 to VDD+ 0.3 V

Ta ≤ 85°C :LC7218 350

Allowable power dissipation Pd max :LC7218M 300 mW

:LC7218JM 200
Operating temperature Topr –40 to +85 °C
Storage temperature Tstg –55 to +125 °C

Allowable Operating Ranges at Ta = –40 to +85°C, VSS= 0 V

Note: 1.

DV and SP are bits in the serial data.
*: don’t care

2. Frequency measurement

3. Frequency measurement

4. Period measurement

5. f

IN

(2): 10 to 160 MHz/VIN(2)

0.100 Vrms (minimum)

6. f

IN

(4): 10 to 70 MHz/VIN(4)

0.100 Vrms (minimum)

No. 4758-4/16

LC7218, 7218M, 7218JM

Parameter Symbol Conditions min typ max Unit

Supply voltage

V

DD

(1) V

DD

4.5 6.5 V

V

DD

(2) VDD: Crystal oscillator guaranteed operation 3.5 6.5 V

Input high level voltage

V

IH

(1) CE, CL, DI, IN0, IN1 2.2 6.5 V

V

IH

(2) LCTR: Pulse waveform, DC coupling

*4

0.7 VDD(1) VDD(1) V

Input low level voltage

V

IL

(1) CE, CL, DI, IN0, IN1 0 0.7 V

V

IL

(2) LCTR

*4

0 0.3 VDD(1) V

Output voltage

V

OUT

(1) DO, SYC 6.5 V

V

OUT

(2) OUT3 to OUT6, OUT0 13 V

f

IN

(1) XIN: Sine wave capacitor coupling, VDD(2) 1.0 7.2 8.0 MHz

f

IN

(2) FMIN: Sine wave capacitor coupling, VDD(1)

*1

10 130 (160)*5MHz

Input frequency

f

IN

(3) AMIN: Sine wave capacitor coupling, VDD(1)

*1

0.5 40 MHz

f

IN

(4) HCTR: Sine wave capacitor coupling, VDD(1)

*2

10 60 (70)*6MHz

f

IN

(5) LCTR: Sine wave capacitor coupling, VDD(1)

*3

15 500 kHz

f

IN

(6) LCTR: Pulse wave DC coupling, VDD(1)

*4

1.0 20 × 103Hz

Crystal oscillators for which

Xtal X

IN-XOUT

: CI ≤ 50 Ω 3.0 7.2 8.0 MHz

operation is guaranteed

V

IN

(1) XIN: Sine wave capacitor coupling, VDD(1) 0.5 1.5 Vrms

V

IN

(2) FMIN: Sine wave capacitor coupling, VDD(1)

0.070

1.5 Vrms

(0.100)

*5

Input amplitude VIN(3) AMIN: Sine wave capacitor coupling, VDD(1) 0.070 1.5 Vrms

V

IN

(4) HCTR: Sine wave capacitor coupling, VDD(1)

*2

0.070

1.5 Vrms

(0.100)

*6

VIN(5) LCTR: Sine wave capacitor coupling, VDD(1)

*3

0.070 1.5 Vrms

DV SP Input frequency 1/2 divider 1/16, 17 swallow 12-bit main divider Input pin

1 * 10 to 130 (160) MHz

●● ●● ●● FMIN

0 1 2 to 40 MHz —

●● ●● AMIN

0 0 0.5 to 10 MHz — —

●● AMIN

Electrical Characteristics for the Allowable Operating Ranges

Note: A capacitor of at least 2000 pF must be inserted between the power supply VDDand VSSpotentials.

No. 4758-5/16

LC7218, 7218M, 7218JM

Parameter Symbol Conditions min typ max Unit

Rf (1) XIN 1.0 MΩ
Rf (2) FMIN 500 kΩ

Internal feedback resistance Rf (3) AMIN 500 kΩ

Rf (4) HCTR 500 kΩ
Rf (5) LCTR 500 kΩ

Hysteresis V

H

LCTR 0.1 V

DD

0.6 V

DD

V

I

IH

(1) CE, CL, DI: VI= 6.5 V 5.0 µA

I

IH

(2) IN0, IN1: VI= V

DD

5.0 µA

Input high level current I

IH

(3) XIN: VI= V

DD

20 µA

I

IH

(4) FMIN, AMIN: VI= V

DD

40 µA

I

IH

(5) HCTR, LCTR: VI= V

DD

40 µA

I

IL

(1) CE, CL, DI: VI= V

SS

5.0 µA

I

IL

(2) IN0, IN1: VI= V

SS

5.0 µA

Input low level current I

IL

(3) XIN: VI= V

SS

20 µA

I

IL

(4) FMIN, AMIN: VI= V

SS

40 µA

I

IL

(5) HCTR, LCTR: VI= V

SS

40 µA

Output high level voltage

V

OH

(1) OUT1, OUT2: IO= –1 mA VDD– 1.0 V

V

OH

(2) PD1, PD2: IO= –0.5 mA VDD– 1.0 V

V

OL

(1) OUT1, OUT2: IO= 1 mA 1.0 V

V

OL

(2) PD1, PD2: IO= 0.5 mA 1.0 V

Output low level voltage

V

OL

(3) OUT3 to OUT6: IO= 5 mA 1.0 V

V

OL

(4) OUT0: IO= 1 mA 1.0 V

V

OL

(5) DO: IO= 5 mA 1.0 V

V

OL

(6) SYC: IO= 0.5 mA (VDD= 3.5 to 6.5 V) 1.0 V

I

OFF

(1) OUT3 to OUT6, OUT0: VO= 13 V 5.0 µA

Output off leakage current I

OFF

(2) DO: VO= 6.5 V 5.0 µA

I

OFF

(3) SYC: VO= 6.5 V (VDD= 3.5 to 6.5 V) 5.0 µA

Three-state high level

I

OFFH

PD1, PD2: VO= V

DD

0.01 10.0 nA

off leakage current
Three-state low level

I

OFFL

PD1, PD2: VO= V

SS

0.01 10.0 nA

off leakage current
Input capacitance C

IN

FMIN, HCTR 1 2 3 pF
V

DD

: fIN(2) = 130 MHz, VIN(2) = 70 mVrms,

I

DD

(1) with a 7.2 MHz crystal, other input pins at VSS, 20 30 mA

Current drain

output pins open
VDD: PLL block stopped (PLL inhibit state), crystal

I

DD

(2) oscillator operating (SYC, TB), with a 7.2 MHz crystal, 1.0 mA

other input pins at V

SS

, output pins open