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參數(shù)資料
| 型號： | 935227450157 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | DAC |
| 英文描述： | TRIPLE, PARALLEL, WORD INPUT LOADING, 0.01 us SETTLING TIME, 10-BIT DAC, PQFP48 |
| 封裝： | PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 11/18頁 |
| 文件大小： | 158K |
| 代理商： | 935227450157 |
1996 Aug 14
2
Philips Semiconductors
Preliminary specication
Triple 10-bit video Digital-to-Analog
Converter (DAC)
TDA8775
FEATURES
10-bit resolution
Sampling rate up to:
– 50 MHz for normal mode; RL = 37.5
– 35 MHz for LOW power mode; RL = 150
Internal current reference
Current reference selector for:
– normal mode, RL = 37.5 (typ.)
– low-power mode, RL = 150 (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
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VDDA
analog supply voltage
4.5
5.0
5.5
V
VDDD
digital supply voltage
4.5
5.0
5.5
V
IDDA
analog supply current
SLT = 1; RL = 37.5
67
tbf
mA
SLT = 0; RL = 150
16
tbf
mA
IDDD
digital supply current
SLT = 1; RL = 37.5
15
tbf
mA
SLT = 0; RL = 150
10
tbf
mA
INL
DC integral non-linearity
±1
±2
LSB
DNL
DC differential non-linearity
±0.7
±1.0
LSB
fclk(max)
maximum clock frequency
SLT = 1; RL = 37.5
50
MHz
SLT = 0; RL = 150
35
MHz
Ptot
total power dissipation
SLT = 1; RL = 37.5 ;
fclk =50MHz
410
tbf
mW
SLT = 0; RL = 150 ;
fclk =35MHz
130
tbf
mW
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8775G
LQFP48
plastic low prole quad at package; 48 leads; body 7
× 7 × 1.4 mm
SOT313-2
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