參數(shù)資料
型號: UDA1325H
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: Universal Serial Bus USB CODEC
中文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PQFP64
封裝: PLASTIC, QFP-64
文件頁數(shù): 43/52頁
文件大小: 310K
代理商: UDA1325H
1999 May 10
43
Philips Semiconductors
Preliminary specification
Universal Serial Bus (USB) CODEC
UDA1325
Notes
1.
2.
3.
Strongly depends on the external decoupling capacitor connected to V
ref(DA)
.
C
ref
in
μ
F.
Although a level of 1.414 V (RMS) would be required to optimal drive the ADC in this gain setting, this level can not
be used. Due to the 3.3 V supply voltage input, signals of 1.17 V (RMS) and higher will result in clipping.
Measured with the APLL as ADC clock source.
Measured with I
2
S-bus input as digital source.
4.
5.
Filter stream DAC
RES
V
o(FS)(rms)
resolution
full-scale output voltage
(RMS value)
supply voltage ripple rejection at
V
DDA
and V
DDO
channel unbalance
crosstalk between channels
total harmonic distortion plus
noise-to-signal ratio
16
0.66
bits
V
V
DD
= 3.3 V
SVRR
f
ripple
= 1 kHz
V
ripple(p-p)
= 0.1 V
maximum volume
R
L
= 5 k
f
s
= 44.1 kHz;
R
L
= 5 k
; note 5
at input signal of
1 kHz (0 dB)
60
dB
V
o
α
ct
(THD + N)/S
0.03
95
dB
dB
90
90
0.0032
30
3.2
95
80
0.01
20
10
dB
%
dB
%
dB
at input signal of
1 kHz (
60 dB)
S/N
signal-to-noise ratio at bipolar zero
A-weighting at
code 0000H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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