參數(shù)資料
型號(hào): SAA5291AH
廠商: NXP Semiconductors N.V.
英文描述: Economy teletext and TV microcontrollers
中文描述: 經(jīng)濟(jì)圖文電視和電視微控制器
文件頁(yè)數(shù): 8/68頁(yè)
文件大?。?/td> 612K
代理商: SAA5291AH
1997 Jul 07
8
Philips Semiconductors
Preliminary specification
Economy teletext and TV microcontrollers
SAA5x9x family
6.2
Pin description
Table 1
SDIP52 and QFP80 packages
SYMBOL
PIN
DESCRIPTION
SDIP52
QFP80
P2.0/TPWM
P2.1/PWM0
P2.2/PWM1
P2.3/PWM2
P2.4/PWM3
P2.5/PWM4
P2.6/PWM5
P2.7/PWM6
P3.0/ADC0
P3.1/ADC1
P3.2/ADC2
P3.3/ADC3
P3.4/PWM7
P3.5
P3.6
P3.7
V
SSD
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
V
SSA
CVBS0
CVBS1
BLACK
1
2
3
4
5
6
7
8
9
77
78
79
80
9
8
1
2
3
5
6
7
44
46
48
22
12
14
15
16
20
21
24
25
26
27
28
29
30
Port 2
: 8-bit open-drain bidirectional port with alternative functions.
P2.0/TPWM is the output for the 14-bit high precision PWM.
P2.1/PWM0 to P2.7/PWM6 are the outputs for the 6-bit PWMs 0 to 6.
Port 3
: 8-bit open-drain bidirectional port with alternative functions.
P3.0/ADC0 to P3.3/ADC3 are the inputs for the software ADC facility.
P3.4/PWM7 is the output for the 6-bit PWM7.
10
11
12
30
13
14
15
16
17
18
19
20
21
22
23
24
25
Digital ground.
Port 0
: 8-bit open-drain bidirectional port.
P0.5 and P0.6 have 10 mA current sinking capability for direct drive of LEDs.
Analog ground.
Composite video inputs; a positive-going 1 V (peak-to-peak) input is required,
connected via a 100 nF capacitor.
Video black level storage input: this pin should be connected to V
SSA
via a
100 nF capacitor.
Reference current input for analog circuits, connected to V
SSA
via a 27 k
resistor.
De-interlace output synchronised with the VSYNC pulse to produce a
non-interlaced display by adjustment of the vertical deflection circuits.
Internally connected; this pin should be connected to digital ground.
Open-drain, active LOW output which allows selective contrast reduction of
the TV picture to enhance a mixed mode display.
IREF
26
31
FRAME
27
36
V
SSD
COR
28
29
37
38
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