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| 型號(hào)： | TDA9840T-T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 文件頁(yè)數(shù)： | 14/15頁(yè) |
| 文件大?。?/td> | 160K |
| 代理商： | TDA9840T-T |
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1998 Jul 03
8
Philips Semiconductors
Product specication
TV and VTR stereo/dual sound processor
with digital identication and I2C-bus control
TDA9840
Power supply
The different supply voltages and currents required for the
analog and digital circuits are derived from an internal
band-gap reference circuit. The AF reference voltage is
1
2VP. For a fast setting to 12VP an internal start-up circuit
is added. A good ripple rejection is achieved with the
external capacitor Cref = 100 F/16 V in conjunction with
the high ohmic input of the 1
2VP pin (pin 6). Additional
DC-load on this pin is prohibited.
Power-on reset
When a power-on reset is activated by switching on the
supply voltage or because of a supply voltage breakdown,
the 117/274 Hz DPLL, the 117/274 Hz integrator and the
registers will be reset. Both AF channels
(Main and SCART) are muted.
Fast mode / test mode
The TDA9840 has a fast mode (test mode) to reduce the
integration time of the 117/274 Hz integrator from
approximately 1 to 0.5 s.
ESD protection
All pins are ESD protected. The protection circuits
represent the latest state of the art.
Internal circuit
The internal pin loading diagram is given in Fig.7.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
Note
1. Charge device model class B: discharging a 200 pF capacitor through a 0
series resistor.
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VP
supply voltage (pin 18)
0.3
10
V
Vi
voltage at pins 1 and 20
0.3
5.5
V
Vi
voltage at pins 2 to 15, 17 and 19
0.3
VP
V
Tstg
storage temperature
25
+150
°C
Tamb
operating ambient temperature
0
+70
°C
Vesd
electrostatic handling for all pins
note 1
±300
V
SYMBOL
PARAMETER
VALUE
UNIT
Rth j-a
thermal resistance from junction to ambient in free air
DIP20
73
K/W
SO20
90
K/W
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| TDA9845 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:TV and VTR stereo/dual sound processor with digital identification |
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| TDA9847 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:TV and VTR stereo/dual sound processor with digital identification |
| TDA9847T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:TV and VTR stereo/dual sound processor with digital identification |
| TDA9850 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled BTSC stereo/SAP decoder |
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