AD1953_15 datasheet(8/36 Pages) AD

8 / 36 page

AD1953–Typical Performance Characteristics

–8–

REV. 0

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.

–160

020

2468

–20

–80

–120

–40

–60

–100

–140

kHz

TPC 1. FFT of Full-Scale Sine Wave (32k Points)

–160

020

2468

–20

–80

–120

–40

–60

–100

–140

kHz

TPC 2. FFT of –60 dB Sine Wave (32k Points)

–20

10k

–10

100

–2

–4

–6

–8

–12

–14

–16

–18

200

500

TPC 3. Frequency Response of EQ Biquad Filters

3.0

–3.0

–120

–100

–80

–20

0.5

–1.0

–2.0

–0.5

–1.5

–2.5

–60

–40

dBFS

2.5

1.5

2.0

1.0

TPC 4. Linearity Plot

–2.0

–120

–100

–80

–20

–60

–1.5

–1.0

–0.5

0.5

1.0

1.5

2.0

TPC 5. Tone-Burst Response with Compressor

Threshold Set to –20 dB

AD1953 数据表(PDF) 8 Page - Analog Devices

AD1953 数据表(HTML) 8 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

数据表下载

链接网址

AD1953 数据表(PDF) 8 Page - Analog Devices

AD1953 数据表(HTML) 8 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

数据表 下载

链接网址

数据表下载