CMOS IC
Ordering number : EN5743
70398RM(OT) No. 5743-1/23
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
PLL Frequency Synthesizer
for Electronic Tuning
LC72137, 72137M
Overview
The LC72137 and LC72137M 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: 4
-- 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: 2.5 to 3.6 V
-- Operating temperature: 20 to +70C
Packages
--DIP22S/MFP20
Package Dimensions
unit: mm
3059-DIP22S
SANYO: DIP22S
[LC72137]
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
3036B-MFP20
SANYO: MFP20
[LC72137M]
No. 5743-2/23
LC72137, 72137M
Specifications
Absolute Maximum Ratings
at Ta = 25C, V
SS
= 0 V
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
Maximum output current
I
O
max
BO1 to BO4, IO1, IO2, DO, AOUT
0 to 6.0
mA
Allowable power dissipation
Pd max
Ta
70C: LC72136N (DIP22S)
350
mW
Ta
70C: LC72136NM (MFP20)
180
mW
Operating temperature
Topr
20 to +70
C
Storage temperature
Tstg
40 to +125
C
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply voltage
V
DD
V
DD
2.5
3.6
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 BO4, 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
200
800
mVrms
V
IN
2-1
FMIN: f = 10 to 130 MHz
20
800
mVrms
V
IN
2-2
FMIN: f = 130 to 160 MHz
40
800
mVrms
Input amplitude
V
IN
3
AMIN: f
IN
3, SNS = 1
40
800
mVrms
V
IN
4
AMIN: f
IN
4, SNS = 0
40
800
mVrms
V
IN
5-1
IFIN: f
IN
5, IFS = 1
40
800
mVrms
V
IN
5-2
IFIN: f
IN
6, IFS = 0
70
800
mVrms
Guaranteed crystal
Xtal
XIN, XOUT
*
75
kHz
oscillator frequency
Allowable Operating Ranges
at Ta = 20 to +70C, V
SS
= 0 V
*
Note : Recommended crystal oscillator CI value : CI
35 k
No. 5743-3/23
LC72137, 72137M
Electrical Characteristics
within the allowable operating ranges
Ratings
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 to BO4, IO1, IO2; I
O
= 1 mA
0.25
V
Output low-level voltage
BO1 to BO4, IO1, IO2; I
O
= 5 mA
1.25
V
V
OL
3
DO: I
O
= 1 mA
0.25
V
V
OL
4
AOUT, A
IN
= 1.3 V
0.5
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
0.16
0.9
A
I
IH
4
FMIN, AMIN: V
I
= V
DD
2.5
15
A
I
IH
5
IFIN: V
I
= V
DD
5.0
30
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
0.16
0.9
A
I
IL
4
FMIN, AMIN: V
I
= 0 V
2.5
15
A
I
IL
5
IFIN: V
I
= 0 V
5.0
30
A
I
IL
6
AIN: V
I
= 0 V
200
nA
Output off leakage current
I
OFF
1
BO1 to BO4, AOUT, IO1, IO2: V
O
= 13 V
5.0
A
I
OFF
2
DO: V
O
= 6.5 V
5.0
A
High-level three-state off
I
OFFH
PD: V
O
= V
DD
0.01
200
nA
leakage current
Low-level three-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 = 20 mVrms
2.5
6
mA
Current drain
I
DD
2
V
DD
: PLL block stopped (PLL inhibit),
20
mA
Xtal oscillator operating (Xtal = 75 kHz)
I
DD
3
V
DD
: PLL block stopped, Xtal oscillator stopped
10
A
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