NTE NTE1290 Datasheet

NTE1290

Integrated Circuit

AM Tuner for Car Radio

Features:

D Complete 1–Chip AM Tuner
D Good High–Input Characteristics Provided with Automatic Dynamic Range Mag. Control at RF

State (THD = 1% Typ. at 130dBµ)

D High AGC FOM (63dB Typ)
D Good Usable Sensitivity (23dBµ Typ.)
D Low Distortion (0.4% Typ. at 74dBµ)
D Good Beat Characteristics (3fi beat = 40dB at 108dBµ Input, at fi = 262.5kHz)
D Large Two–Signal Selectivity (55dB Typ. at Desired 54dBµ)
D Cut–Off Pop Noise at Detuning
D Standard Power Supply Voltage Area is 10.8V through 15.6V (13.2V typ) and Local Oscillation

Stopping Voltage is Less Than 6V.

Absolute Maximum Ratings

Supply Voltage, V
Power Dissipation (T

CC

= +60°C), P

A

Operating Temperature Range, T
Storage Temperature Range, T

Electrical Characteristics

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

550mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

opr

T

–30° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

: (TA = +25°C, VCC = 13.2V, fc = 1000kHz, fm = 400Hz, Output Power

of Power Stage 0.5W, RL = 4Ω unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Current Drain I
Signal–to–Noise Ratio S/N Input = 34dBµ, 30% MOD. 25.5 30 – dB
AGC FOM Output Base at 74dBµ input, Test at the

Total Harmonic Distortion THD Input = 11dBµ, 30% MOD. – 0.4 5 %
Sensitivity Input at S/N = 20dB, 30% MOD. – 23 – dBµ

CC

VCC = 13.2V at zero signal – 15 – mA

51 63 – dB

10dB output down, 30% MOD.

16V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pin Connection Diagram

RF Amp Input

RF Bypass

AGC Bypass

GND

st

1

Amp Output

2nd IF Amp Input

AGC Bypass

Detector Output

1
2

3
4
5
6
7
8

16 9

RF Amp Output

16
15

V

CC

14

Converter Input

13

Low Input

12

Converter Output
GND

11

10

1st IF Amp Input

9

V

CC

.260 (6.6) Max

.245

(6.22)

Min

18

.785 (19.9) Max

.300 (7.62)

.200 (5.08)

Max

.100 (2.54)

.700 (17.7)