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LC72136NM View Datasheet(PDF) - SANYO -> Panasonic

Part Name
Description
Manufacturer
LC72136NM Datasheet PDF : 23 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Continued from preceding page.
Symbol
Pin No.
(MFP pin numbers
are in parentheses.)
Type
BO1
BO2
BO3
BO4
BO5
BOF
7 (8)
8 (9)
9 (10)
10 (11)
14 (15)
2 (3)
Output ports
LC72136N, 72136NM
Functions
• Dedicated outputs
• The output states are determined by the BO1 to BO5
bits in the serial data.
Data: 0 = open, 1= low
• A time base signal (8 Hz) can be output from the BO1
pin. (When the serial data TBC bit is set to 1.)
• Care is required when using the BO1 pin, since it has a
higher on impedance that the other output ports (pins
BO2 to BO5).
• The output state of the BOF pin is determined by the
serial data DVS bit. Thus this pin can be used as an FM
band selection switch. (Note that it should not be used
as an AM band selection switch since it is susceptible to
noise from the crystal oscillator.)
DVS data: 0 = open, 1 = low
• All output ports are set to the open state following a
power on reset.
Circuit configuration
• I/O dual-use pins
• The direction (input or output) is determined by bits IOC1
and IOC2 in the serial data.
Data: 0 = input port, 1 = output port
• When specified for use as input ports:
The state of the input pin is transmitted to the controller
IO1
IO2
11 (12)
13 (14)
Input or output
ports
over the DO pin.
Input state: low = 0 data value
high = 1 data value
• When specified for use as output ports:
The output states are determined by the IO1 and IO2
bits in the serial data.
Data: 0 = open, 1 = low
• These pins function as input pins following a power on
reset.
• PLL charge pump output
When the frequency generated by dividing the local
PD
18 (19)
Charge pump
output
oscillator signal frequency by N is higher than the
reference frequency, a high level is output from the PD
pin. Similarly, when that frequency is lower, a low level is
output. The PD pin goes to the high-impedance state
when the frequencies match.
AIN
AOUT
19 (20)
20 (21)
LPF amplifier
transistor
connections
• The n-channel MOS transistor used for the PLL active
low-pass filter.
IFIN
12 (13)
IF counter
• Accepts an input in the frequency range 0.4 to 12 MHz.
• The input signal is directly transmitted to the IF counter.
• The result is output starting the MSB of the IF counter
using the DO pin.
• Four measurement periods are supported: 4, 8, 32, and
64 ms.
No. 5608-7/23
 

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