NTE NTE1620 Datasheet

NTE1620

Integrated Circuit

B/W TV Video IF Amplifier,

RF AGC Circuit

Description:

The NTE1620 is an integrated circuit in a 9–Lead SIP type package designed for use as a B/W TV
video IF amplifier and RF AGC circuit. Typical applications inclued low voltage operation (6V) and
small B/W TVs.

Features:

D Low Voltage Operation Video IF Circuit with Minimum Number of Peripheral Components
D A Wide Range of Gain Reduction and IF AGC

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, V

Supply Current, I
Power Dissipation, P

CC

CC

D

Operating Ambient Temperature Range, T
Storage Temperatuere Range, T

stg

opr

–20° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–40° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20.5mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

156mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics: (TA = +25°C unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Total Circuit Current I
Voltage Gain G
AGC Range H
Input Resistance R
Input Capacitance C
Output Capacitance C
Transfer Admittance |Y21| f = 58.75MHz – 545 – mS
Noise Figure NF – 9.5 – dB
Voltage Gain (RF AGC) G
Upper Voltage (RF AGC) V
Lower Voltage (RF AGC) V

tot

AGC

(Upper)VCC
(Lower)VCC

VCC = 5.5V 9.5 13.5 17.5 mA
f = 58.75MHz 23 28 32 dB

V

f = 58.75MHz 60 – – dB
f = 58.75MHz, vi = 30mV

i
i

o

V

= 5.5V, V

= 5.5V, V4 = 100mV – – 0.1 V

rms

= 100mV 4.0 4.4 4.8 V

4

– 900 – Ω
– 5.5 – pF
– 3.0 – pF

87 100 113 times

Pin Connection Diagram

(Front View)

Decoupling

9
8

V

CC

VIF Output

7
6

RF AGC Output
GND

5
4

RF AGC Ref. Voltage
AGC Voltage Input

3

Decoupling

2

VIF Input

1

.929 (23.6) .118 (3.0)

.236
(6.0)

19

.098
(2.5)

.100 (2.54) .118(3.0)