參數(shù)資料
型號(hào)： SAA7167
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： YUV-to-RGB Digital-to-Analog Converter DAC
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝： PLASTIC, SOT-313-2, LQFP-48
文件頁(yè)數(shù)： 10/20頁(yè)
文件大?。?/td> 144K
代理商： SAA7167
1995 Nov 03
10
Philips Semiconductors
Preliminary specification
YUV-to-RGB Digital-to-Analog
Converter (DAC)
SAA7167
AC CHARACTERISTICS
T
amb
= 0 to 70
°
C.
Notes
1.
Switching time measured from the 50% point of the EXTKEY transition edge to the 50% point of the selected analog
output transition.
DAC output rise/fall time measured between the 10% and 90% points of full scale transition.
DAC settling time measured from the 50% point of full-scale transition to the output remaining within
±
1 LSB.
DAC analog output propagation delay measured from the 50% point of the rising edge of VCLK to the 50% point of
full-scale transition.
2.
3.
4.
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
f
clk
δ
PCLK
video clock rate
duty factor of VCLK
pixel clock rate (8-bit pixel colour key); see Fig.4
pixel clock rate (2
×
8-bit pixel colour key; mode 1);
see Fig.5
pixel clock rate (2
×
8-bit pixel colour key; mode 2);
see Fig.6
pixel clock rate (3
×
8-bit pixel colour key); see Fig.7
duty factor of PCLK
digital input set-up time to VCLK rising edge
digital input hold time to VCLK rising edge
digital input set-up time to PCLK rising edge
digital input hold time to PCLK rising edge
digital input set-up time to PCLK falling edge
digital input hold time to PCLK falling edge
switching time between video DAC/analog inputs;
note 1
overall group delay from digital video inputs to analog
outputs (see Fig.8):
YUV video input mode
RGB video input mode
DAC analog output rise time (see Fig.8); note 2
DAC analog output fall time (see Fig.8); note 2
DAC analog output settling time (see Fig.8); note 3
DAC analog output propagation delay (see Fig.8);
note 4
50
50
50
40
MHz
%
MHz
MHz
80
MHz
40
3
3
3
3
3
3
50
75
60
15
MHz
%
ns
ns
ns
ns
ns
ns
ns
t
su1
t
h1
t
su2
t
h2
t
su3
t
h3
t
sw
T
group
20T
VCLK
+ t
PD
12T
VCLK
+ t
PD
5
5
15
15
ns
ns
ns
ns
ns
ns
t
r
t
f
t
s
t
PD
Analog outputs from analog inputs
G
v
B
SR
voltage gain
bandwidth (
3 dB)
slew rate
2.0
75
90
MHz
V/
μ
s
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