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14.14.TL431
14.14.1.Description
The TL431 is a 3-terminal adjustable shunt voltage regulator providing a highly accurate 1 % band gap
reference. TL431 acts as an open-loop error amplifier with a 2.5V temperature compensation reference.
The TL431 thermal stability, wide operating current (150mA) and temperature range (0.to 105.makes it
suitable for all variety of application that are looking for a low cost solution with high performance. The
output voltage may be adjusted to any value between VREF and 36 volts with two external resistors.
The TL431 is operating in full industrial temperature range of 0°C to 105°C. The TL431 is available in
TO-92, SO-8, SOT-89 and SOT23-5 packages.
14.14.2.Features
• Trimmed Band gap to 1%
• Wide Operating Current
• Extended Temperature Range
• Low Temperature Coefficient
• Offered in TO -92, SOIC, SOT-89, SOT-23-5
• Improved Replacement in Performance for TL431
• Low Cost Solution
14.14.3.Pin Configurations
14.15.TDA9885/86
14.15.1.Introduction
The TDA9885 is an alignment-free single standard (without positive modulation) vision and sound IF signal
PLL. The TDA9886 is an alignment-free multi standard (PAL, SECAM and NTSC) vision and sound IF signal
PLL. Both devices can be used for TV, VTR, PC and set-top box applications.
14.15.2.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
• Digital acquisition help, VIF frequencies of 33.4, 33.9, 38.0, 38.9, 45.75 and 58.75 MHz
19
14
NC
18
13
NC
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12
I2S_DA_IN2
16
11
DVSS
15
-
DVSS
14
-
DVSS
13
10
DVSUP
12
-
DVSUP
11
-
DVSUP
10
9
ADR_CL
1mA to 150mA
0. °C to 105.°C
30 ppm /°C
2
C-bus
LV
LV
IN
LV
X
X
X
X
X
X
OUT
LV
22
Not connected
Not connected
2
I
S2-data input
Digital ground
Digital ground
Digital ground
Digital power supply 5V
Digital power supply 5V
Digital power supply 5V
ADR clock
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