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)： 9/20頁(yè)
文件大?。?/td> 144K
代理商： SAA7167
1995 Nov 03
9
Philips Semiconductors
Preliminary specification
YUV-to-RGB Digital-to-Analog
Converter (DAC)
SAA7167
Table 8
Bit functions in data byte; notes 1 and 2
Notes
1.
2.
All I
2
C-bus control bits are initialized to logic 0 after RES is activated.
PCLK should be active in any event to allow for correct operation of I
2
C-bus programming.
DC CHARACTERISTICS
T
amb
= 0 to 70
°
C.
BIT
DESCRIPTION
FMTC1 and FMTC0
video format control:
00; YUV 4 : 2 : 2
01; YUV 4 : 1 : 1
10; YUV 2:1:1/CCIR 656
11; RGB 5 : 6 : 5
key polarity:
KINV = 0: EXTKEY = HIGH for analog mixer to select DAC outputs
KINV = 1: EXTKEY = HIGH for analog mixer to select analog RGB inputs
key enable:
0 = disable
1 = enable
UV input data code: 0 = two’s complement; 1 = binary offset
keying mode:
000; external key
100; 8-bit pixel colour key
101; 2
×
8-bit pixel colour key (with two-edge clock latching for pixel input)
110; 2
×
8-bit pixel colour key (with one-edge clock latching for pixel input)
111; 3
×
8-bit pixel colour key (with one-edge clock latching for pixel input)
all other combinations are reserved
added keying delay cycles (from 0 to 7 PCLK)
the data value compared for 8, 16 or 24-bit pixel colour key
KINV
KEN
DRP
KMOD2 to KMOD0
KDLY2 to KDLY0
KD7 to KD0
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
V
DDD
V
DDA
I
DDtot
V
IH
V
IL
V
IH
V
IL
V
in
V
out
DNL
INL
digital supply voltage
analog supply voltage
total supply current (f
clk
= 50 MHz)
HIGH level input voltage (pin SDA)
LOW level input voltage (pin SDA)
HIGH level digital input voltage
LOW level digital input voltage
full-scale analog RGB inputs
full scale analog RGB outputs (for 150
load)
differential non-linearity error of video output
integral non-linearity error of video output
4.75
4.75
3
0.5
2
5.0
5.0
100
0.7
1.4
5.25
5.25
V
DDD
+ 0.5
+1.5
0.8
1
1
V
V
mA
V
V
V
V
V
V
LSB
LSB
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