AD1953YSTRL 查看數據表（PDF） - Analog Devices
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AD1953YSTRL Datasheet PDF : 36 Pages
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AD1953–Typical Performance Characteristics
PERFORMANCE PLOTS
The following plots demonstrate the performance achieved on the
actual silicon. TPC 1 shows an FFT of a full-scale 1 kHz signal
with a THD+N of –100 dB, which is dominated by a second
harmonic. TPC 2 shows an FFT of a –60 dB sine wave, demon-
strating the lack of low level artifacts. TPC 3 shows a frequency
response plot with the seven equalization biquads set to an alter-
nating pattern of 6 dB boosts and cuts. TPC 4 shows a linearity
plot, where the measurement was taken with the same equaliza-
tion curve used to make TPC 3. When the biquad filters are not
in use, the signal passes through the filters with no quantization
effects. TPC 4 therefore demonstrates that using double-precision
math in the biquad filters has virtually eliminated any quantization
artifacts. TPC 5 shows a tone-burst applied to the compressor,
with the attack and recovery characteristics plainly visible. The
rms detector was programmed for normal rms time constants;
the hold/decay feature was not used for this plot.
0
–2
–4
–6
–8
–10
–12
–14
–16
–18
–20
20
50 100 200 500 1k
Hz
5k
10k
TPC 3. Frequency Response of EQ Biquad Filters
0
–20
–40
–60
–80
–100
–120
–140
–160
0 2 4 6 8 10 12 14 16 18 20
kHz
TPC 1. FFT of Full-Scale Sine Wave (32k Points)
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–120
–100
–80
–60
–40
–20
0
dBFS
TPC 4. Linearity Plot
0
–20
–40
–60
–80
–100
–120
–140
–160
0 2 4 6 8 10 12 14 16 18 20
kHz
TPC 2. FFT of –60 dB Sine Wave (32k Points)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–120
–100
–80
–60
–20
0
ms
TPC 5. Tone-Burst Response with Compressor
Threshold Set to –20 dB
–8–
REV. 0
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