TDA8011 데이터 시트보기 (PDF) - Philips Electronics

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TDA8011

IF amplifier for satellite TV receivers

Philips Electronics 

Philips Semiconductors

IF amplifier for satellite TV receivers

Product specification

TDA8011T

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX. UNIT

Gain control

VAGC

RAGC1

RAGC2

AGC input voltage

AGC resistor 1

AGC resistor 2

G ≤ Gv(min)

G ≥ Gv(max)

0.1VCC −

−

−

−

4.3

−

110

−

V

0.9VCC V

−

kΩ

−

kΩ

Notes

1. The voltage gain Gv is defined as the ratio between the single-ended output voltage and the differential input voltage

with

a 150 Ω

output load:

G

=

20

×

log







V----V-I-F--i-O--







2. The tilt is defined as the maximum absolute difference between the gain at the frequency fo = 480 MHz and the gain

at the frequency fo = 480 MHz ±20 MHz. Where ∆Gv = maxG(fo ±∆f) − G(fo)

3. The unmatched noise figure (F) is measured at fi = 480 MHz in the application circuit (see Fig.6). With the hybrid

coupler used, the equivalent source impedance is equal to 100 Ω.

4. The minimum noise figure [F(min)] is measured at fi = 480 MHz with the input matching circuit shown in Fig.3;

(L1: 4.5 turns on, Φint = 3 mm, wire = 0.4 mm; L2: 11 turns on, Φint = 3 mm, wire = 0.4 mm).

5. The third-order intermodulation distance (IM3) is measured with an AGC voltage set to obtain a gain of −17 dB. The

input signal applied to the amplifier consists of two sine wave signals at fi = 479.5 MHz and fi = 480.5 MHz with an

amplitude equal to 90 dBµV for each tone.

6. The differential input impedance is represented by an equivalent parallel resistance and capacitance as shown in

Fig.1. The specified values are measured at fi = 480 MHz.

February 1995

Fig.3 Input matching circuit.

5

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