NTE1233 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit Frequency Synthesizer

NTE1233
Integrated Circuit
Frequency Synthesizer
Description:
The NTE1233 consists of a crystal oscillator, 10 bit divider, phase comparator and a programmable
divided−by−N 9 bit counter constructed with complementary MOS device in one chip monolithic
structure. This device has been designed for use in frequency synthesizers and phase locked loop
applications for CB transceiver requiring low power dissipation and high noise immunity.
Absolute Maximum Ratings: (T_A = +25°C, unless otherwise specified)
Supply Voltage, V_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 to +7V
Input Voltage, V_IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 to V_DD +0.3
Power Dissipation, P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mW
Operating Temperature Range, T_opg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +125°C
Electrical Characteristics: (T_A = +25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Operating Supply Voltage Range
V^DD
Supply Current
I_DD
N = 256
Prog. Divder Input Frequency Max.
Ref. Frequency Input Max.
F_MAX(P)
F_MAX(R)
V_DD = 4.5V
Prog. Divider Input Voltage
V_PIN
Ref. Divider Input Voltage
V_RIN
High Level Output Current (D_O)
I_OH
V_OH = 4.0V
Low Level Output Current (D_O)
I_OL
V_OL = 1.0V
High Level Output Current (LD)
I_OH(LD) V_OH = 4.0V
Min
5.0
−
4.0
10.24
1.0
1.5
−0.5
0.5
−0.5
Typ Max Unit
− 6.5 V
− 9 mA
− − MHz
− − MHz
− − V_p−p
− − V_p−p
− − mA
− − mA
− − mA