LC7185-8750(1998) Просмотр технического описания (PDF) - SANYO -> Panasonic
Номер в каталоге
Компоненты Описание
производитель
LC7185-8750 Datasheet PDF : 12 Pages
| |||
Pin Description
Pin Name
TX
Pin No.
30
HOLD
26
INIT
25
TEST
22
VDD
24
VSS2
21
PIN
23
XIN
20
XOUT
19
PD
27
VSS1
28
NC
29
UL
18
BEEP
17
SA to SG
1 to 7
D1
8
D2
9
LC7185-8750
Type
. Transmit/receive select
Description
TX = ‘‘0’’...Transmit, TX = ‘‘1’’...Receive
. Hold mode select
HOLD = ‘‘0’’...Hold mode select
. = ‘‘1’’...Normal mode select
Reset line
INIT = ‘‘0’’...Reset
. Test point (input)
Tie to ground or leave floating
. Power supply (+)
Normal mode: 5.0 to 8.0 V
Hold mode: ^ 3.2 V
. Channel display LED driver ground
. Programmable divider input
150 mVrms min
Hold mode: Programmable divider is disabled.
. Crystal oscillator
Frequency: 10.24 MHz
Hold mode: Oscillator is disabled.
. Charge pump output from the phase comparator. If the frequency of fV
(the signal obtained by dividing the PIN input by N) is higher than that of
fR (the reference signal), or if the phase of fV leads that of fR, positive
pulses are output on this pin. If the frequency is lower or the phase lags,
negative pulses are output on this pin. If they match, the pin goes to high
impedance.
. fV > fR OR leading: Positive Pulses
. fV < fR OR leading: Negative Pulses
. fV = fR and phase muched: High impedance
Hold mode: High impedance
. PLL circuit and controller ground
. No-connection
. Unlock detected output
Fixed to low level when unlocked, when changing channels, in PA mode,
or in hold mode.
Open: Locked
. Beep-tone control output
During station memory operation
During I/O on emergency channel
When changing channels
During reset
During hold mode recovery
Fixed to low level in hold mode
. Segment drivers for the display
(Common anode/7 segments)
—
Transistor: Off (50 ms cycle)
→ Open
. Digit output (150 Hz) for the display
(common anode/7 segments)
Hold mode: Transistor goes off.
Continued on next page.
No. 3356-5/12
Share Link: 