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LC72146 の電気的特性と機能

LC72146のメーカーはSanyo Semicon Deviceです、この部品の機能は「PLL Frequency Synthesizer for Electronic Tuning」です。


製品の詳細 ( Datasheet PDF )

部品番号 LC72146
部品説明 PLL Frequency Synthesizer for Electronic Tuning
メーカ Sanyo Semicon Device
ロゴ Sanyo Semicon Device ロゴ 




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LC72146 Datasheet, LC72146 PDF,ピン配置, 機能
Ordering number : EN4922C
CMOS LSI
LC72146, 72146M
PLL Frequency Synthesizer
for Electronic Tuning
Overview
The LC72146 is a PLL frequency synthesizer LSI circuit
for electronic tuning in car stereo systems. The LC72146
supports the construction of high-performance, multi-
functional electronic tuning systems for the VHF MW,
and LW bands.
Features
• High-speed programmable dividers for
— 10 to 160 MHz on FMIN using pulse swallower
— 0.5 to 40.0 MHz on AMIN using pulse swallower
and direct division
• General-purpose counters
— HCTR for 0.4 to 25.0 MHz frequency measurement
— LCTR for 10 to 500 kHz frequency measurement
and 1.0 Hz to 20 × 103 kHz period measurement
• Reference frequencies: Twelve selectable reference
frequencies (4.5 or 7.2 MHz crystal) 1, 3, 5, 9, 10,
3.125, 6.25, 12.5, 25, 30, 50 and 100 kHz
• Phase comparator
— Insensitive band control
— Unlock detection
— Sub-charge pump for high-speed locking
— Deadlock clear circuit
• CCB input/output data interface
• Power-on reset circuit
• Built-in MOS transistor for a low-pass filter
• Inputs/outputs (using five general-purpose input/output
ports)
— Maximum of seven inputs (max)
— Maximum of seven outputs (max/four n-channel
open-drain and three CMOS outputs)
— Time-base output for clock (8 Hz)
• Operating ranges
— Supply voltage ..................................4.5 to 5.5 V
— Opetating temperature ......................–40 to 85°C
• Package
— DIP24S, 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.
Package Dimensions
unit: mm
3067-DIP24S
[LC72146]
unit: mm
3112-MFP24S
[LC72146M]
SANYO: DIP24S
SANYO: MFP24S
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73096HA (OT)/11095TH (OT) No. 4922-1/21

1 Page





LC72146 pdf, ピン配列
LC72146, 72146M
Continued from preceding page.
Parameter
Clock low-level time
Clock high-level time
CE wait time
CE setup time
CE hold time
Chip enable to data latch time
Data output time
Symbol
tCL
tCH
tEL
tES
tEH
tLC
tDC
CL*5
CL*5
CE, CL*5
CL, CE*5
CE, CL*5
*5
Conditions
DO, CL; Depends on pull-up resistor
Note: 1. Period measurement
2. See the description of the structure of the programmable divider.
3. With the CTC bit in the serial data set to 0
4. With the CTC bit in the serial data set to 1
5. See the description of the serial data timing.
Electrical Characteristics at Ta = –40 to +85°C, VSS = 0 V
Parameter
Internal feedback resistance
Sub charge pump
internal resistance
Hysteresis
Output high-level voltage
Output low-level voltage
Input high-level current
Input low-level current
Symbol
Rf1
Rf2
Rf3
Rf4
Rf5
XIN
FMIN
AMIN
HCTR/I-6
LCTR/I-7
Conditions
R1S AIN
VHIS
VOH1
VOH2
VOL1
VOL2
VOL3
VOL4
VOL5
IIH1
IIH2
IIH3
IIH4
IIH5
IIH6
IIL1
IIL2
IIL3
IIL4
IIL5
IIL6
CE, CL, DI, LCTR/I-7
IO = 0.5 mA
PD0, PD1, I/O-4, I/O-5, O-6 IO = 1 mA
IO = 2 mA
AIN: IO = 1 mA
PD0, PD1, I/O-4,
I/O-5, O-6, O-7
IO = 0.5 mA
IO = 1 mA
IO = 2 mA
AIN: IO = 1 mA
IO = 1 mA
I/O-1 to I/O-3
IO = 2.5 mA
IO = 5 mA
IO = 9 mA
DO; IO = 5 mA
AOUT; IO = 1 mA, AIN = 1.3 V
CE, CL, DI; VI = 6.5 V
I/O-1 to I/O-3; VI = 13 V
I/O-4, I/O-5, HCTR/I-6, LCTR/I-7; VI = VDD
XIN; VI = VDD
FMIN, AMIN; VI = VDD
HCTR/I-6, LCTR/I-7; VI = VDD
CE, CL, DI; VI = 0 V
I/O-1 to I/O5; VI = 0 V
HCTR/I-6, LCTR/I-7; VI = 0 V
XIN; VI = 0 V
FMIN, AMIN; VI = 0 V
HCTR/I-6, LCTR/I-7; VI = 0 V
min
0.45
0.45
0.45
0.45
0.45
typ
min
VDD – 0.5
VDD – 1.0
VDD – 2.0
VDD – 0.6
typ
1.0
500
500
250
250
100
0.1 VDD
VDD – 0.3
0.3
2.0
4.0
8.0
2.0
4.0
8.0
max
0.45
0.2
Unit
µs
µs
µs
µs
µs
µs
µs
max Unit
m
k
k
k
k
V
V
V
V
V
0.5 V
1.0 V
2.0 V
0.6 V
0.2 V
0.5 V
1.0 V
1.8 V
1.0 V
0.5 V
5.0 µA
5.0 µA
5.0 µA
11 µA
22 µA
44 µA
5.0 µA
5.0 µA
5.0 µA
11 µA
22 µA
44 µA
Continued on next page.
No. 4922-3/21


3Pages


LC72146 電子部品, 半導体
Continued from preceding page.
Number
Symbol
9 I/O-4
8 I/O-5
LC72146, 72146M
Type
Function
General-purpose
I/O port
• General-purpose I/O ports
• Output mode circuit type: complementary
• Function after a power on reset: input port
• Can be set up to function as output ports by bits I/O-4
and I/O-5 in the serial data sent from the controller.
Equivalent circuit
7
O-6
Output port
• The LC72146 latches the OUT6 bit in the serial data and
outputs it from pin O-6.
• The LC72146 latches the OUT7 bit in the serial data and
outputs it from pin O-7.
6 O-7 Output port • Outputs a time base signal (8 Hz) when TBC is set to 1.
• Function after a power on reset: open circuit
• PLL charge pump output pin
If the frequency generated by dividing the local oscillator
20
19
frequency by N is higher than the reference frequency, a
PD0
Charge pump
high level will be output from PD0, and if it is lower, a low
PD1
output
level will be output. PD0 goes to the high-impedance
state when the frequencies match.
• PD1 operates identically.
• Connections to the n-channel MOS transistor used for
the PLL active low-pass filter.
21
22
AIN
AOUT
Connections for the • A high-speed locking circuit can be formed by using
low-pass filter
these pins with the built-in sub charge pump.
transistor
• See the item on the structure of the charge pump for
details.
• HCTR is selected when CTS1 is set to 1.
• Input frequency range: 0.4 to 25 MHz
• The signal is passed through a divide-by-two circuit and
then input to a general-purpose counter. This input also
supports an integrating count function.
14
HCTR/I-6
General-purpose • The result is output from the DO output pin starting with
counter
the MSB of the general-purpose counter.
• See the item on the structure of the general-purpose
counter for details.
• When the H/I-6 bit in the serial data is set to 0:
• This pin functions as an input port, and the value input is
output from the DO pin.
Continued on next page.
No. 4922-6/21

6 Page



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共有リンク

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