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参数资料
| 型号： | TDA4854NB |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 偏转 |
| 英文描述： | HORIZ/VERT DEFLECTION IC, PDIP32 |
| 封装： | PLASTIC, SDIP-32 |
| 文件页数： | 28/63页 |
| 文件大小： | 318K |
| 代理商： | TDA4854NB |
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1999 Jul 13
34
Philips Semiconductors
Product specication
I2C-bus autosync deection controllers for
PC/TV monitors
TDA4853; TDA4854
Table 4
List of I2C-bus controlled switches; notes 1 and 2
Notes
1. X = don’t care.
2. # = this bit is occupied by another function. If the register is addressed, the bit values for both functions must be
transferred.
3. Bits STDBY and SOFTST can be reset by internal protection circuit.
CONTROL
BIT
FUNCTION
SAD
(HEX)
REGISTER ASSIGNMENT
D7 D6 D5 D4 D3 D2 D1 D0
BLKDIS
0: vertical, protection and horizontal unlock blanking
available on pins CLBL and HUNLOCK
01
X
######D0
1: only vertical and protection blanking available on
pins CLBL and HUNLOCK
HBC
0: HPINBAL (parabola) waveform enabled
01
X
#####D1 #
1: HPINBAL (parabola) waveform disabled
HPC
0: HPARAL (sawtooth) waveform enabled
01
X
####D2 #
#
1: HPARAL (sawtooth) waveform disabled
AGCDIS
0: AGC in vertical oscillator active
01
X
###D3 ###
1: AGC in vertical oscillator inhibited
VSC
0: VLIN and HCOR adjustments enabled
01
X
#
D4 ####
1: VLIN and HCOR adjustments forced to centre value
MOD
0: horizontal and vertical moire cancellation enabled
01
X
#
D5 #####
1: horizontal and vertical moire cancellation disabled
TVMOD
0: TV mode at fmin not activated
01
X
D6 ######
1: TV mode at fmin activated
FHMULT
0: EW output independent of horizontal frequency
0B
######X
D0
1: EW output tracks with horizontal frequency
VOVSCN
0: vertical size 100%
0B
#####D2 X
#
1: vertical size 116.8% for VGA350
CLAMP
0: trailing edge for horizontal clamp
0B
####D3 #
X
#
1: leading edge for horizontal clamp
VBLK
0: vertical blanking = 260
s
0B
###D4 ##X
#
1: vertical blanking = 340
s
VLC
0: VLINBAL adjustment enabled
0B
#
D5 ###X
#
1: VLINBAL adjustment forced to centre value
VPC
0: VPOS and HTRAP adjustments enabled
0B
#
D6 ####X
#
1: VPOS and HTRAP adjustments forced to centre value
ACD
0: ASCOR disconnected from PLL2
0B
D7 #####X
#
1: ASCOR internally connected with PLL2
STDBY(3)
0: internal power supply enabled
0D
XXXXXX#
D0
1: internal power supply disabled
SOFTST(3)
0: soft start not released (pin HPLL2 pulled to ground)
0D
XXXXXXD1 #
1: soft start is released (power-up via pin HPLL2)
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