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参数资料
| 型号： | TDA4853NB |
| 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： | 19/63页 |
| 文件大小： | 318K |
| 代理商： | TDA4853NB |
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1999 Jul 13
26
Philips Semiconductors
Product specication
I2C-bus autosync deection controllers for
PC/TV monitors
TDA4853; TDA4854
Notes
1. For duration of vertical blanking pulse see subheading ‘Vertical oscillator [oscillator frequency in application without
adjustment of free-running frequency ffr(V)]’.
2. Continuous blanking at CLBL (pin 16) will be activated, if one of the following conditions is true:
a) No horizontal flyback pulses at HFLB (pin 1) within a line
b) X-ray protection is triggered
c) Voltage at HPLL2 (pin 30) is low during soft start
d) Supply voltage at VCC (pin 10) is low
e) PLL1 unlocked while frequency-locked loop is in search mode.
3. Oscillator frequency is fmin when no sync input signal is present (continuous blanking at pins 16 and 17).
4. Loading of HPLL1 (pin 26) is not allowed.
5. Voltage at HPLL1 (pin 26) is fed to HBUF (pin 27) via a buffer. Disturbances caused by horizontal sync are removed
by an internal sample-and-hold circuit.
6. All vertical and EW adjustments in accordance with note 8, but VSIZE = 80% (register VSIZE = 63 and control
bit VOVSCN = 0).
7. Value of resistor at VREF (pin 23) may not be changed.
8. All vertical and EW adjustments are specified at nominal vertical settings; unless otherwise specified, which means:
a) VSIZE = 100% (register VSIZE = 127 and control bit VOVSCN = 0)
b) VSMOD = 0 (no EHT compensation)
Voff(VCC)
supply voltage level for
deactivation of BDRV, VOUT1,
VOUT2 and HUNLOCK; also
sets register SOFTST
VCC decreasing from
above typical 8.3 V
7.7
8.1
8.5
V
THRESHOLDS DERIVED FROM HPLL2 VOLTAGE
VHPLL2(blank)(ul)
upper limit voltage for
continuous blanking
4.7
V
VHPLL2(bduty)(ul)
upper limit voltage for variation
of BDRV duty cycle
3.4
V
VHPLL2(bduty)(ll)
lower limit voltage for variation
of BDRV duty cycle
2.8
V
VHPLL2(hduty)(ul)
upper limit voltage for variation
of HDRV duty cycle
2.8
V
VHPLL2(hduty)(ll)
lower limit voltage for variation
of HDRV duty cycle
1.7
V
VHPLL2(stby)(ll)
lower limit voltage for VOUT1
and VOUT2 to be active via
I2C-bus soft start
1.1
V
VHPLL2(stby)(ul)
upper limit voltage for standby
voltage
1
V
VHPLL2(stby)(ll)
lower limit voltage for VOUT1
and VOUT2 to be active via
external DC current
0
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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相关代理商/技术参数 |
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|---|---|
| TDA4854 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:I2C-bus autosync deflection controllers for PC/TV monitors |
| TDA4855 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Autosync Deflection Controller ASDC |
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| TDA4857PS | 制造商:NXP Semiconductors 功能描述:HORIZ/VERT DEFLECTION IC, PDIP32 |
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