參數(shù)資料
型號(hào): AD1953YSTZ
廠商: Analog Devices Inc
文件頁數(shù): 35/36頁
文件大?。?/td> 0K
描述: IC DSP DAC AUDIO3CH/26BIT 48LQFP
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
標(biāo)準(zhǔn)包裝: 1
系列: SigmaDSP®
位數(shù): 26
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 3
電壓電源: 模擬和數(shù)字
功率耗散(最大): 540mW
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 托盤
輸出數(shù)目和類型: 6 電壓,單極
采樣率(每秒): 48k
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.
0
–160
020
2468
14
16
18
–20
–80
–120
–40
–60
–100
–140
10
12
kHz
dB
TPC 1. FFT of Full-Scale Sine Wave (32k Points)
0
–160
020
2468
14
16
18
–20
–80
–120
–40
–60
–100
–140
10
12
kHz
dB
TPC 2. FFT of –60 dB Sine Wave (32k Points)
Hz
0
–20
20
10k
–10
1k
100
–2
–4
–6
–8
–12
–14
–16
–18
50
200
500
5k
dB
TPC 3. Frequency Response of EQ Biquad Filters
3.0
–3.0
–120
0
–100
–80
–20
0.5
–1.0
–2.0
0
–0.5
–1.5
–2.5
–60
–40
dBFS
2.5
1.5
2.0
1.0
dB
TPC 4. Linearity Plot
–2.0
–120
0
–100
–80
–20
–60
ms
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
2.0
V
TPC 5. Tone-Burst Response with Compressor
Threshold Set to –20 dB
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