NTE1745 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit High Speed Divider 1/20, 1/100 for VCR

NTE1745
Integrated Circuit
High Speed Divider 1/20, 1/100 for VCR
Description:
The NTE1745 is a semiconductor integrated circuit in an 8–Lead SIP type package consisting of a
built–in 1/20 and 1/100 high–speed frequency divider featuring an ECL circuit configuration.
Features:
D High–Speed Operation (f_max = 130MHz)
D Operation at Low Input Amplitudes (180mV_p–p Minimum Input Amplitude)
D TTL Level Output
Applications:
FM radio prescalers, digital equipment for consumer and industrial applications
Function:
This divider is based on an ECL circuit configuration. When a frequency up to a maximum of 130MHz
is applied to the T_I input pin, 1/20–divided output is produced when the division ratio selection input
pin (M) is low–level or a 1/100–divided output is produced when the division ratio selection input pin
(M) is high–level. The output (T_O) is available in the TTL level open collector format.
Absolute Maximum Ratings: (T_A = –10° to +75°C unless otherwise specified)
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V
Input Signal Voltage, V_I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V_p–p
Output Signal Voltage, V_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Power Dissipation (T_A = +25°C), P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.33W
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10° to +75°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C