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Sanyo Semicon Device |
Ordering number : EN5743
CMOS IC
LC72137, 72137M
PLL Frequency Synthesizer
for Electronic Tuning
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 +70°C
• Packages
—DIP22S/MFP20
Package Dimensions
unit: mm
3059-DIP22S
[LC72137]
unit: mm
3036B-MFP20
[LC72137M]
• 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
SANYO: MFP20
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
70398RM(OT) No. 5743-1/23
LC72137, 72137M
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter
Maximum supply voltage
Maximum input voltage
Maximum output voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VIN1 max
VIN2 max
VIN3 max
VO1 max
VO2 max
VO3 max
IO max
Pd max
Topr
Tstg
Conditions
VDD
CE, CL, DI, AIN
XIN, FMIN, AMIN, IFIN
IO1, IO2
DO
XOUT, PD
BO1 to BO5, BOF, IO1, IO2, AOUT
BO1 to BO4, IO1, IO2, DO, AOUT
Ta ≤ 70°C: LC72136N (DIP22S)
Ta ≤ 70°C: LC72136NM (MFP20)
Allowable Operating Ranges at Ta = –20 to +70°C, VSS = 0 V
Parameter
Symbol
Conditions
Supply voltage
Input high-level voltage
Input low-level voltage
Output voltage
Input frequency
Input amplitude
Guaranteed crystal
oscillator frequency
VDD
VIH1
VIH2
VIL
VO1
VO2
fIN1
fIN2
fIN3
fIN4
fIN5
VIN1
VIN2-1
VIN2-2
VIN3
VIN4
VIN5-1
VIN5-2
Xtal
VDD
CE, CL, DI
IO1, IO2
CE, CL, DI, IO1, IO2
DO
BO1 to BO4, IO1, IO2, AOUT
XIN: VIN1
FMIN: VIN2
AMIN: VIN3, SNS = 1
AMIN: VIN4, SNS = 0
IFIN: VIN5
XIN: fIN1
FMIN: f = 10 to 130 MHz
FMIN: f = 130 to 160 MHz
AMIN: fIN3, SNS = 1
AMIN: fIN4, SNS = 0
IFIN: fIN5, IFS = 1
IFIN: fIN6, IFS = 0
XIN, XOUT *
* Note : Recommended crystal oscillator CI value : CI ≤ 35 kΩ
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 6.0
350
180
–20 to +70
–40 to +125
Unit
V
V
V
V
V
V
V
mA
mW
mW
°C
°C
min
2.5
0.7 VDD
0.7 VDD
0
0
0
10
2
0.5
0.4
200
20
40
40
40
40
70
Ratings
typ
75
75
max
3.6
6.5
13
0.3 VDD
6.5
13
160
40
10
12
800
800
800
800
800
800
800
Unit
V
V
V
V
V
V
kHz
MHz
MHz
MHz
MHz
mVrms
mVrms
mVrms
mVrms
mVrms
mVrms
mVrms
kHz
No. 5743-2/23
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