Philips Semiconductors
Downconverter for DVB
Product specification
TDA9829T
70
handbook, full pagewigdathin
(dB)
0.06
60
IF input
(mV RMS) 50
0.6
40
30
6
20
10
60
0
−10
1
(1) Ituner; RTOP = 22 kΩ.
(2) Gain.
(1) (2)
(3)
(4)
1.5
2
2.5
3
3.5
(3) Ituner; RTOP = 11 kΩ.
(4) Ituner; RTOP = 0 Ω.
Fig.3 Typical IF and tuner AGC characteristic.
MHB221
Ituner
(mA)
0
1
2
4 V18 (V) 4.5
handbook, full pagewidth
VP
VP = 5 V
I14
TDA9829T 14
22 kΩ
22 kΩ
V14 I14
(V) (µA)
4.5 −200
3.5 −100
2.5
0
1.5 100
0.5 200
MHB222
(source current)
(sink current)
35.75
43.45
36.15
43.75
36.55
44.05
fIF (MHz)
1998 Nov 09
Fig.4 Measurement conditions and typical AFC characteristic.
9