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参数资料
| 型号： | TSA1204IFT-E |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | ADC |
| 英文描述： | 2-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48 |
| 封装： | 7 X 7 MM, PLASTIC, TQFP-48 |
| 文件页数： | 28/31页 |
| 文件大小： | 435K |
| 代理商： | TSA1204IFT-E |
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Dynamic characteristics
TSA1204
6/31
3
Dynamic characteristics
Dynamic characteristics are measured at AVCC = DVCC = VCCB = 2.5 V, FS= 20 Msps,
Fin=10.5 MHz, Vin@ -1 dBFS, VREFP=1.0 V, VREFM=0 V and Tamb = 25° C (unless otherwise
specified).
4
Timing characteristics
Timing characteristics are measured at AVCC = DVCC = VCCB = 2.5 V, FS= 20 Msps,
Fin=10.5 MHz, Vin@ -1 dBFS, VREFP=1.0 V, VREFM=0 V and Tamb = 25° C (unless otherwise
specified).
Table 2.
Dynamic characteristics
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
SFDR
Spurious free dynamic range
-81.5
-71.0
dBc
SNR
Signal to noise ratio
66.9
68.5
dB
THD
Total harmonics distortion
-80
-70
dBc
SINAD
Signal to noise and distortion ratio
64.8
68
dB
ENOB
Effective number of bits
10.6
11.2
bits
Table 3.
Timing characteristics
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
FS
Sampling frequency
0.5
20
MHz
DC
Clock duty cycle
45
50
55
%
TC1
Clock pulse width (high)
22.5
25
ns
TC2
Clock pulse width (low)
22.5
25
ns
Tod
Data output delay (clock edge to data
valid)
10 pF load
capacitance
9ns
Tpd I
Data pipeline delay for channel I
7
cycle
s
Tpd Q
Data pipeline delay for channel Q
7.5
cycle
s
Ton
Falling edge of OEB to digital output
valid data
1ns
Toff
Rising edge of OEB to digital output
tri-state
1ns
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