NTE1536
Integrated Circuit
CB Transceiver PLL Frequency Synthesizer
Description:
The NTE1536 is a CMOS LSI device for the 27MH
Z
Citizen鈥檚 Band Transceiver.
Function:
The NTE1536 composes a Phase Lock Loop (PLL) frequency synthesizer system with only one
crystal for an AM CB transceiver.
Features:
D
Only one crystal is required for AM CB transceiver.
D
Two types of intermediate frequency can be selected:
IF
1
= 10.695MH
Z
IF
2
= 9.785MH
Z
D
Two types of lock monitor outputs:
LM: When PLL is locked/unlocked, LM is high/low level.
LM: When PLL is locked/unlocked, LM is low/high level.
D
The amplifier for low pass filter.
D
The amplifier for programmable counter input.
D
The detecting circuit for the mis鈥損rogramming.
D
BCD code input to the programmable counter.
D
The buffer output for the reference oscillator.
D
The output for the half frequency of the reference oscillator.
D
The reference frequency oscillation amplifier (with feedback resistance).
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Maximum Supply Voltage, V
DD
max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?.3 to +9.0V
Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?.3 to V
DD
+0.3V
Output Voltage, V
OUT
(Unload) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?.3 to V
DD
+0.3V
Operating Temperature Range, T
opg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +70擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +125擄C
1
2
3
