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參數(shù)資料
| 型號(hào)： | TDA8011T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 衰減器 |
| 英文描述： | IF amplifier for satellite TV receivers |
| 中文描述： | RF/MICROWAVE WIDE BAND LOW POWER AMPLIFIER |
| 封裝： | PLASTIC, SOT-96-1, 8 PIN |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 80K |
| 代理商： | TDA8011T |
February 1995
5
Philips Semiconductors
Product specification
IF amplifier for satellite TV receivers
TDA8011T
Notes
1.
The voltage gain G
v
is defined as the ratio between the single-ended output voltage and the differential input voltage
V
i
with a 150
output load:
2.
The tilt is defined as the maximum absolute difference between the gain at the frequency f
o
= 480 MHz and the gain
at the frequency f
o
= 480 MHz
±
20 MHz. Where
G
v
= max
G(f
o
±
f)
G(f
o
)
The unmatched noise figure (F) is measured at f
i
= 480 MHz in the application circuit (see Fig.6). With the hybrid
coupler used, the equivalent source impedance is equal to 100
.
The minimum noise figure [F
(min)
] is measured at f
i
= 480 MHz with the input matching circuit shown in Fig.3;
(L1: 4.5 turns on,
Φ
int
= 3 mm, wire = 0.4 mm; L2: 11 turns on,
Φ
int
= 3 mm, wire = 0.4 mm).
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 f
i
= 479.5 MHz and f
i
= 480.5 MHz with an
amplitude equal to 90 dB
μ
V for each tone.
The differential input impedance is represented by an equivalent parallel resistance and capacitance as shown in
Fig.1. The specified values are measured at f
i
= 480 MHz.
3.
4.
5.
6.
Gain control
V
AGC
AGC input voltage
G
≤
G
v(min)
G
≥
G
v(max)
0.1V
CC
4.3
110
0.9V
CC
V
V
k
k
R
AGC1
R
AGC2
AGC resistor 1
AGC resistor 2
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
G
20
log
×
--V
=
Fig.3 Input matching circuit.
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