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TSA1204 bảng dữ liệu(PDF) 1 Page - STMicroelectronics

tên linh kiện TSA1204
Giải thích chi tiết về linh kiện  DUAL-CHANNEL, 12-BIT, 20MSPS, 120mW A/D CONVERTER
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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TSA1204 bảng dữ liệu(HTML) 1 Page - STMicroelectronics

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s 0.5Msps to 20Msps sampling frequency
s Adaptive power consumption: 120mW @
20Msps, 95mW@10Msps
s Single supply voltage: 2.5V
Independent supply for CMOS output stage
with 2.5V/3.3V capability
s ENOB=11.2 @ Nyquist
s SFDR= -81.5 dBc @ Nyquist
s 1GHz analog bandwidth Track-and-Hold
s Common clocking between channels
s Dual simultaneous Sample and Hold inputs
s Multiplexed outputs
s Built-in reference voltage with external bias
capability.
DESCRIPTION
The TSA1204 is a new generation of high speed,
dual-channel Analog to Digital converter pro-
cessed in a mainstream 0.25µm CMOS technolo-
gy yielding high performances and very low power
consumption.
The TSA1204 is specifically designed for applica-
tions requiring very low noise floor, high SFDR
and good isolation between channels. It is based
on a pipeline structure and digital error correction
to provide excellent static linearity and over 11.2
effective bits at Fs=20Msps, and Fin=10MHz.
For each channel, a voltage reference is integrat-
ed to simplify the design and minimize external
components. It is nevertheless possible to use the
circuit with external references.
Each ADC outputs are multiplexed in a common
bus with small number of pins. A tri-state capabili-
ty is available for the outputs, allowing chip selec-
tion. The inputs of the ADC must be differentially
driven.
The TSA1204 is available in extended (-40 to
+85°C) temperature range, in a small 48 pins
TQFP package.
APPLICATIONS
s Medical imaging and ultrasound
s 3G base station
s I/Q signal processing applications
s High speed data acquisition system
s Portable instrumentation
ORDER CODE
PIN CONNECTIONS (top view)
BLOCK DIAGRAM
PACKAGE
Part Number
Temperature
Range
Package
Conditioning
Marking
TSA1204IF
-40°C to +85°C
TQFP48
Tray
SA1204I
TSA1204IFT
-40°C to +85°C
TQFP48
Tape & Reel
SA1204I
EVAL1204/BA
Evaluation board
D5
D6
D7
D8
D9
D10
D11(MSB)
AVCCB
index
corner
1
2
3
4
5
6
7
8
9
10
11
32
31
30
29
28
27
26
13
14 15
16
17
18 19
20
21
22
47
25
33
12
23
24
35
34
36
48
44 43
42
41
40
39
38 37
46
45
TSA1204
VCCBE
GNDBE
AGND
INI
AGND
AGND
IPOL
AGND
AGND
INBQ
INIB
AGND
INQ
D2
D3
D4
Timing
Buffers
IPOL
CLK
+2.5V/3.3V
VINI
VINBI
OEB
VINCMI
GND
VINQ
VINBQ
VINCMQ
AD 12
I channel
AD 12
Q channel
12
12
12
12
M
U
X
REF I
REF Q
SELECT
VREFPI
VREFPQ
Polar.
VREFMI
VREFMQ
common mode
common mode
D0
TO
D11
VCCBE
GNDBE
7
× 7 mm TQFP48
TSA1204
DUAL-CHANNEL, 12-BIT, 20MSPS, 120mW A/D CONVERTER
February 2003


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