參數(shù)資料
型號(hào)： TDA8768AH/4
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： ADC
英文描述： 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP44
封裝： 10 X 10 MM, 1.75 MM HEIGHT, PLASTIC, SOT-307-2, QFP-44
文件頁(yè)數(shù)： 19/32頁(yè)
文件大小： 1434K
代理商： TDA8768AH/4
Philips Semiconductors
TDA8768A
12-bit, 70 Msps Analog-to-Digital Converter (ADC)
Product data
Rev. 02 — 03 July 2002
26 of 32
9397 750 09656
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
The total intermodulation distortion IMD is given by
where,
and
is the power in the intermodulation component at frequency ft.
12.1.4
Noise Power Ratio (NPR)
When using a notch-ltered broadband white-noise generator as the input to the ADC
under test, the Noise Power Ratio is dened as the ratio of the average out-of-notch
to the in-notch power spectral density magnitudes for the FFT spectrum of the ADC
output sample set.
IMD dB
[]
10
P
intermod
P
signal
-----------------------
log
=
P
intermod
a
im
2
f
t1
f
t2
–
() a
im
2
f
t1
f
t2
+
() a
im
2
f
t1
2f
t2
–
()
a
im
2
f
t1
2f
t2
+
() a
im
2
2f
t1
f
t2
–
() a
im
2
2f
t1
f
t2
+
()
+
–
=
P
signal
a2 f
t1
() a2 f
t2
()
+
=
a
im
2
f
t
()
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TDA8768H/4 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:12-bit high-speed Analog-to-Digital Converter ADC
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