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參數資料
| 型號： | 935245400518 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | ADC |
| 英文描述： | 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP44 |
| 封裝： | PLASTIC, SOT-307-2, QFP-44 |
| 文件頁數： | 12/23頁 |
| 文件大小： | 183K |
| 代理商： | 935245400518 |
1998 Aug 26
2
Philips Semiconductors
Preliminary specication
12-bit high-speed Analog-to-Digital
Converter (ADC)
TDA8768
FEATURES
12-bit resolution
Sampling rate up to 55 MHz
3 dB bandwidth of 190 MHz
5 V power supplies
Binary or twos-complement CMOS outputs
In-range CMOS-compatible output
TLL-CMOS compatible static digital inputs
3 to 5 V CMOS-compatible digital outputs
Differential clock input; Positive Emitter Coupled Logic
(PECL)-compatible
Power dissipation 325 mW (typical)
Low analog input capacitance (typical 2 pF), no buffer
amplifier required
Integrated sample-and-hold amplifier
Differential analog input
External amplitude range control
Voltage controlled regulator included.
APPLICATIONS
High-speed analog-to-digital conversion for
– Video signal digitizing
– High Definition TV (HDTV)
– Imaging (camera scanner)
– Medical imaging
– Telecommunication
– Base-station receiver.
GENERAL DESCRIPTION
The TDA8768 is a bipolar 12-bit Analog-to-Digital
Converter (ADC) optimized for telecommunications and
professional imaging. It converts the analog input signal
into 12-bit binary coded digital words at a maximum
sampling rate of 55 MHz. All static digital inputs (SH, CE
and OTC) are TTL and CMOS compatible and all outputs
are CMOS compatible. A sine wave clock input signal can
also be used.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VCCA
analog supply voltage
4.75
5.0
5.25
V
VCCD
digital supply voltage
4.75
5.0
5.25
V
VCCO
output supply voltage
3.0
3.3
5.25
V
ICCA
analog supply current
33
tbf
mA
ICCD
digital supply current
30
tbf
mA
ICCO
output supply current
fCLK = 4 MHz; fi = 400 kHz
3.2
tbf
mA
INL
integral non-linearity
fCLK = 4 MHz; fi = 400 kHz
±2.0
±4.5
LSB
DNL
differential non-linearity
fCLK = 4 MHz; fi = 400 kHz
±0.6
±1.0
LSB
fCLK(max)
maximum clock frequency
TDA8768H/4
40
MHz
TDA8768H/5
55
MHz
Ptot
total power dissipation
325
tbf
mW
TYPE
NUMBER
PACKAGE
SAMPLING
FREQUENCY (MHz)
NAME
DESCRIPTION
VERSION
TDA8768H/4
QFP44
plastic quad at package; 44 leads
(lead length 1.3 mm); body 10
× 10 × 1.75 mm SOT307-2
40
TDA8768H/5
55
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