TDA9800T View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TDA9800T Datasheet PDF : 23 Pages
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Philips Semiconductors
VIF-PLL demodulator and FM-PLL detector
Preliminary specification
TDA9800
FEATURES
• Suitable for negative vision modulation
• Applicable for IF frequencies of 38.9 MHz, 45.75 MHz
and 58.75 MHz
• Gain controlled wide band VIF amplifier (AC coupled)
• True synchronous demodulation with active carrier
regeneration (ultra-linear demodulation, good
intermodulation figures, reduced harmonics and
excellent pulse response)
• Peak sync AGC for negative modulation
• Video amplifier to match sound trap and sound filter
• AGC output voltage for tuner; adjustable take-over point
(TOP)
• AFC detector without extra reference circuit
• Alignment-free FM-PLL detector with high linearity
• Stabilizer circuit for ripple rejection and to achieve
constant output signals
• 5 to 8 V positive supply voltage range, low power
consumption (300 mW at +5 V supply voltage).
GENERAL DESCRIPTION
The TDA9800 is a monolithic integrated circuit for vision
and sound IF signal processing in TV and VTR sets.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
VP
positive supply voltage (pin 20)
IP
supply current
Vi IF
vision IF input signal sensitivity (RMS value, pins 1 and 2)
maximum vision IF input signal (RMS value, pins 1 and 2)
Gv
Vo CVBS
B
S/N (W)
IF gain control
CVBS output signal on pin 7 (peak-to-peak value)
−3 dB video bandwidth on pin 7
signal-to-noise ratio weighted; for video
α0.92/1.1
α2.76/3.3
αH
Vo AF
Tamb
intermodulation attenuation
suppression of harmonics in video signal
maximum AF output signal for THD < 1.5% (RMS value, pin 9)
operating ambient temperature
MIN.
4.5
51
−
70
64
1.7
6
56
56
56
35
0.8
−20
TYP. MAX. UNIT
5 8.8 V
60 69 mA
50 90 µV
150 −
mV
70 73 dB
2.0 2.3 V
8−
MHz
59 −
dB
62 −
dB
62 −
dB
40 −
dB
−−
V
− +70 °C
ORDERING INFORMATION
EXTENDED TYPE
NUMBER
TDA9800
TDA9800T
PINS
20
20
Note
1. SOT146-1; 1996 December 6.
2. SOT163-1; 1996 December 6.
PIN POSITION
DIL
mini-pack
PACKAGE
MATERIAL
plastic
plastic
CODE
SOT146(1)
SOT163A(2)
July 1994
2
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