Overview
The LC72136 and LC72136M are PLL frequency
synthesizers for use in radio/cassette players. They allow
high-performance AM/FM tuners to be implemented
easily.
Features
High-speed programmable frequency divider
-- FMIN: 10 to 160 MHz .....Pulse swallower
(divide-by-two prescaler built in)
-- AMIN: 2 to 40 MHz .........Pulse swallower
0.5 to 10 MHz ......Direct division
IF counter
IFIN: 0.4 to 12 MHz ................For use as an AM/FM IF
counter
Reference frequency
-- Selectable from one of eight frequencies (crystal
oscillator: 75 kHz)
1, 3, 5, 3.125, 6.25, 12.5, 15, and 25 kHz
Phase comparator
-- Supports dead zone control
-- Built-in unlock detection circuit
-- Built-in deadlock clear circuit
Built-in MOS transistor for forming an active low-pass
filter
I/O ports
-- Dedicated output ports: 6
-- I/O ports: 2
-- Supports clock time base output
Serial Data I/O
-- Supports CCB format communication with the
system controller.
Operating ranges
-- Supply voltage: 4.5 to 5.5 V
-- Operating temperature: 20 to +70C
Packages
--DIP22S/MFP24S
Package Dimensions
unit: mm
3059-DIP22S
SANYO: DIP22S
[LC72136]
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.
unit: mm
3112-MFP24S
SANYO: MFP24S
[LC72136M]
Ordering number : EN5038
PLL Frequency Synthesizer
for Electronic Tuning
LC72136, 72136M
CMOS LSI
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
O3195HA (OT) No. 5038-1/23
Pin Assignments
No. 5038-2/23
LC72136, 72136M
Block Diagram
Specifications
Absolute Maximum Ratings
at Ta = 25C, V
SS
= 0 V
No. 5038-3/23
LC72136, 72136M
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
DD
max
V
DD
0.3 to +7.0
V
V
IN
1 max
CE, CL, DI, AIN
0.3 to +7.0
V
Maximum input voltage
V
IN
2 max
XIN, FMIN, AMIN, IFIN
0.3 to V
DD
+ 0.3
V
V
IN
3 max
IO1, IO2
0.3 to +15
V
V
O
1 max
DO
0.3 to +7.0
V
Maximum output voltage
V
O
2 max
XOUT, PD
0.3 to V
DD
+ 0.3
V
V
O
3 max
BO1 to BO5, BOF, IO1, IO2, AOUT
0.3 to +15
V
I
O
1 max
BO1
0 to 3.0
mA
Maximum output current
I
O
2 max
AOUT, DO
0 to 6.0
mA
I
O
3 max
BO2 to BO5, BOF, IO1, IO2
0 to 10.0
mA
Allowable power dissipation
Pd max
Ta
70C: LC72136 (DIP22S)
350
mW
Ta
70C: LC72136M (MFP24S)
200
mW
Operating temperature
Topr
20 to +70
C
Storage temperature
Tstg
40 to +125
C
Allowable Operating Ranges
at Ta = 20 to +70C, V
SS
= 0 V
Note:
*
Crystal oscillator recommended CI value
CI
35 k
(for a 75 kHz crystal)
The circuit constants for 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.
The extremely high input impedance of the XIN pins means that applications must take the possibility of leakage into account.
Sample Oscillator Circuits
1. Seiko-Epson C-2-75kHz (C
L
= 11 pF)
2. Kyocera Corporation KF-38R5-09P0300 (C
L
= 9 pF)
No. 5038-4/23
LC72136, 72136M
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply voltage
V
DD
V
DD
4.5
5.5
V
Input high-level voltage
V
IH
1
CE, CL, DI
0.7 V
DD
6.5
V
V
IH
2
IO1, IO2
0.7 V
DD
13
V
Input low-level voltage
V
IL
CE, CL, DI, IO1, IO2
0
0.3 V
DD
V
Output voltage
V
O
1
DO
0
6.5
V
V
O
2
BO1 to BO5, BOF, IO1, IO2, AOUT
0
13
V
f
IN
1
XIN: V
IN
1
75
kHz
f
IN
2
FMIN: V
IN
2
10
160
MHz
Input frequency
f
IN
3
AMIN: V
IN
3, SNS = 1
2
40
MHz
f
IN
4
AMIN: V
IN
4, SNS = 0
0.5
10
MHz
f
IN
5
IFIN: V
IN
5
0.4
12
MHz
V
IN
1
XIN: f
IN
1
400
1500
mVrms
V
IN
2-1
FMIN: f = 10 to 130 MHz
40
1500
mVrms
V
IN
2-2
FMIN: f = 130 to 160 MHz
70
1500
mVrms
Input amplitude
V
IN
3
AMIN: f
IN
3, SNS = 1
40
1500
mVrms
V
IN
4
AMIN: f
IN
4, SNS = 0
40
1500
mVrms
V
IN
5-1
IFIN: f
IN
5, IFS = 1
40
1500
mVrms
V
IN
5-2
IFIN: f
IN
6, IFS = 0
70
1500
mVrms
Guaranteed crystal
Xtal
XIN, XOUT
*
75
kHz
oscillator frequency
Electrical Characteristics
at Ta = 20 to +70C, V
SS
= 0 V
No. 5038-5/23
LC72136, 72136M
Parameter
Symbol
Conditions
min
typ
max
Unit
Rf1
XIN
8.0
M
Internal feedback resistors
Rf2
FMIN
500
k
Rf3
AMIN
500
k
Rf4
IFIN
250
k
Internal pull-down resistors
Rpd1
FMIN
200
k
Rpd2
AMIN
200
k
Internal output resistor
Rd
XOUT
250
k
Hysteresis
V
HIS
CE, CL, DI, IO1, IO2
0.1 V
DD
V
Output high-level voltage
V
OH
1
PD: I
O
= 1 mA
V
DD
1.0
V
V
OL
1
PD: I
O
= 1 mA
1.0
V
V
OL
2
BO1: I
O
= 0.5 mA
0.5
V
BO1: I
O
= 1 mA
1.0
V
V
OL
3
DO: I
O
= 1 mA
0.2
V
Output low-level voltage
DO: I
O
= 5 mA
1.0
V
BO2 to BO5, BOF, IO1, IO2: I
O
= 1 mA
0.2
V
V
OL
4
BO2 to BO5, BOF, IO1, IO2: I
O
= 5 mA
1.0
V
BO2 to BO5, BOF, IO1, IO2: I
O
= 8 mA
1.6
V
V
OL
5
AOUT: I
O
= 1 mA, AIN = 1.3 V
0.5
V
I
IH
1
CE, CL, DI: V
I
= 6.5 V
5.0
A
I
IH
2
IO1, IO2: V
I
= 13 V
5.0
A
Input high-level voltage
I
IH
3
XIN: V
I
= V
DD
0.3
0.6
1.4
A
I
IH
4
FMIN, AMIN: V
I
= V
DD
4.0
22
A
I
IH
5
IFIN: V
I
= V
DD
8.0
44
A
I
IH
6
AIN: V
I
= 6.5 V
200
nA
I
IL
1
CE, CL, DI: V
I
= 0 V
5.0
A
I
IL
2
IO1, IO2: V
I
= 0 V
5.0
A
Input low-level current
I
IL
3
XIN: V
I
= 0 V
0.3
0.6
1.4
A
I
IL
4
FMIN, AMIN: V
I
= 0 V
4.0
22
A
I
IL
5
IFIN: V
I
= 0 V
8.0
44
A
I
IL
6
AIN: V
I
= 0 V
200
nA
Output off leakage current
I
OFF
1
BO1 to BO5, BOF, AOUT, IO1, IO2: V
O
= 13 V
5.0
A
I
OFF
2
DO: V
O
= 6.5 V
5.0
A
High-level tree-state off
I
OFFH
PD: V
O
= V
DD
0.01
200
nA
leakage current
Low-level tree-state off
I
OFFL
PD: V
O
= 0 V
0.01
200
nA
leakage current
Input capacitance
C
IN
FMIN
6
pF
I
DD
1
V
DD
: Xtal = 75 kHz, f
IN
2 = 130 MHz, V
IN
2 = 40 mVrms
5
10
mA
Current drain
I
DD
2
V
DD
: PLL block stopped (PLL inhibit),
0.1
mA
Xtal oscillator operating (Xtal = 75 kHz)
I
DD
3
V
DD
: PLL block stopped, Xtal oscillator stopped
10
A
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