28
TFT TV Service Manual 11/04/2006
• Short-circuit resistant
• High performance
• high signal-to-noise ratio
• High slew rate
• Low distortion
• Large output voltage swing.
11.27.3. Pinning
SYMBOL PIN
DESCRIPTION
PIN
VALUE
OUTA
1
Output A (Voltage swing)
Min : 0.75V, Max : 4.25V
INA(neg)
2
Inverting input A
Vo(clip) : Min : 1400mVrms
INA(pos)
3
Non-inverting input A
2.5V
V
SS
4
Negative
supply 0V
INB(pos)
5
Non-inverting input B
2.5V
INB(neg)
6
Inverting input B
Vo(clip) : Min : 1400mVrms
OUTB
7
Output B (Voltage swing)
Min : 0.75V, Max : 4.25V
V
DD
8
Positive supply
5V, Min : 3.0V, Max : 7.0V
11.28. TDA9886
11.28.1. General
Description
The TDA9886 is an alignment-free single standard (without positive modulation) vision and sound IF
signal PLL.
11.28.2. Features
• 5 V supply voltage
• Gain controlled wide-band Vision Intermediate Frequency (VIF) amplifier (AC-coupled)
• Multistandard true synchronous demodulation with active carrier regeneration (very linear
demodulation, good intermodulation figures, reduced harmonics, excellent pulse response)
• Gated phase detector for L/L accent standard
• Fully integrated VIF Voltage Controlled Oscillator (VCO), alignment-free; frequencies switchable for all
negative and positive modulated standards via I
2
C-bus
• Digital acquisition help, VIF frequencies of 33.4, 33.9, 38.0, 38.9, 45.75 and 58.75 MHz
• 4 MHz reference frequency input [signal from Phase-Locked Loop (PLL) tuning system] or operating
as crystal oscillator
• VIF Automatic Gain Control (AGC) detector for gain control, operating as peak sync detector for
negative modulated signals and as a peak white detector for positive modulated signals
• Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit digital-to-analogue
converter; AFC bits via I
2
C -bus readable
• TakeOver Point (TOP) adjustable via I
2
C-bus or alternatively with potentiometer
• Fully integrated sound carrier trap for 4.5, 5.5, 6.0 and 6.5 MHz, controlled by FM-PLL oscillator
• Sound IF (SIF) input for single reference Quasi Split Sound (QSS) mode (PLL controlled)
• SIF AGC for gain controlled SIF amplifier; single reference QSS mixer able to operate in high
performance single reference QSS mode and in intercarrier mode, switchable via I
2
C-bus
• AM demodulator without extra reference circuit
• Alignment-free selective FM-PLL demodulator with high linearity and low noise
• I
2
C-bus control for all functions
• I
2
C-bus transceiver with pin programmable Module Address (MAD).
11.28.3. Pinning
SYMBOL PIN DESCRIPTION
VIF1 1
VIF differential input 1
VIF2
2
VIF differential input 2
OP1
3
output 1 (open-collector)
FMPLL
4
FM-PLL for loop filter
