TDA8775G View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TDA8775G Datasheet PDF : 16 Pages
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Philips Semiconductors
Triple 10-bit video Digital-to-Analog
Converter (DAC)
Preliminary specification
TDA8775
FEATURES
• 10-bit resolution
• Sampling rate up to:
– 50 MHz for normal mode; RL = 37.5 Ω
– 35 MHz for LOW power mode; RL = 150 Ω
• Internal current reference
• Current reference selector for:
– normal mode, RL = 37.5 Ω (typ.)
– low-power mode, RL = 150 Ω (typ.)
• No deglitching circuit required
• SYNC and BLANK control inputs
• 0.66 V output voltage range on red and blue channels
• 1 V output voltage range on green channel
(including sync)
• BLANK control input on the 3 channels
• + 5 V power supply.
APPLICATIONS
• General purpose high-speed digital-to-analog
conversion
• Digital TV
• Graphic display
• Desktop video processing.
GENERAL DESCRIPTION
The TDA8775 consists of three 10-bit video
Digital-to-Analog Converters (DACs). They convert the
digital input signals into current outputs at a maximum
conversion rate of 50 MHz.
The DACs are based on current source architecture with
selectable current reference.
The devices are fabricated in a 5 V CMOS process that
ensures high functionality with low power dissipation.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
VDDA
VDDD
IDDA
analog supply voltage
digital supply voltage
analog supply current
IDDD
digital supply current
INL
DNL
fclk(max)
DC integral non-linearity
DC differential non-linearity
maximum clock frequency
Ptot
total power dissipation
CONDITIONS
SLT = 1; RL = 37.5 Ω
SLT = 0; RL = 150 Ω
SLT = 1; RL = 37.5 Ω
SLT = 0; RL = 150 Ω
SLT = 1; RL = 37.5 Ω
SLT = 0; RL = 150 Ω
SLT = 1; RL = 37.5 Ω;
fclk = 50 MHz
SLT = 0; RL = 150 Ω;
fclk = 35 MHz
MIN.
4.5
4.5
−
−
−
−
−
−
50
35
−
TYP.
5.0
5.0
67
16
15
10
±1
±0.7
−
−
410
MAX.
5.5
5.5
tbf
tbf
tbf
tbf
±2
±1.0
−
−
tbf
UNIT
V
V
mA
mA
mA
mA
LSB
LSB
MHz
MHz
mW
−
130
tbf
mW
ORDERING INFORMATION
TYPE
NUMBER
TDA8775G
NAME
LQFP48
PACKAGE
DESCRIPTION
plastic low profile quad flat package; 48 leads; body 7 × 7 × 1.4 mm
VERSION
SOT313-2
1996 Aug 14
2
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