參數(shù)資料
型號(hào): UCB1400BE
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Audio codec with touch screen controller and power management monitor
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝: 7 X 7 X 1.40 MM, PLASTIC, LQFP-48
文件頁(yè)數(shù): 51/63頁(yè)
文件大?。?/td> 674K
代理商: UCB1400BE
Philips Semiconductors
UCB1400
Audio codec with touch screen controller
and power management monitor
Product data
Rev. 02 — 21 June 2002
51 of 63
9397 750 09611
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
15. Dynamic characteristics
Table 60:
DV
DD
= AV
DD
= V
ADCP
= 3.3 V; T
amb
= 25
°
C; all voltage measured with respect to ground; unless otherwise specified.
Symbol
Parameter
Conditions
Audio ADC
V
ADCP
Positive reference voltage
V
ADCN
Negative reference voltage
R
IL
Line input resistance
C
IL
Line input capacitance
R
IM
MIC input resistance
C
IM
MIC input capacitance
Z
MICGND
Impedance MICGND - V
SSA
V
i(rms)
FS input voltage (rms value)
Record Gain = 0 dB
Line inputs
MIC input
20 dB = 0
20 dB = 1
V
i
Unbalance between channels
Total harmonic distortion plus
noise-to-signal ratio; f
s
= 48 kHz,
Line-in selected
S/N
Signal-to-noise ratio; f
s
= 48 kHz,
Line-in selected
α
CS
Channel separation; f
s
= 48 kHz,
Line-in selected
PSRR
Power supply rejection ratio
f
ripple
= 1 kHz;
V
ripple
= 30 mV
(p-p)
Audio DAC + headphone driver
R
L
Load resistance
C
L
Load capacitance
V
VREFDRV
VREFDRV voltage
V
o(rms)
Output voltage (rms value)
At 0 dB (FS) digital input
R
L
= 10 k
P
o
Output power
At 0 dB (FS) digital input
R
L
= 32
V
o
Unbalance between channels
At 0 dB (FS) digital input
R
L
= 10 k
Total harmonic distortion plus
noise-to-signal ratio; f
s
= 48 kHz
At 0 dB digital input,
R
L
= 10 k
At
60 dB digital input;
A-weighted
S/N
Signal-to-noise ratio
Code = 0; A-weighted
α
CS
Channel separation
R
L
= 32
PSRR
Power supply rejection ratio
R
L
= 10 k
; f
ripple
= 1 kHz;
V
ripple
= 30 mV
(p-p)
Dynamic characteristics
Min
Typ
Max
Unit
AV
DD
0.0
10
24
10
24
200
V
V
k
pF
k
pF
1.0
1.0
0.1
0.1
87
37
V
V
V
dB
dB
dB
At
3 dB input
At
60 dB input; A-weighted
At zero input; A-weighted
97
dB
At 0 dB input
95
dB
30
dB
16
32
AV
DD
/2
1.0
30
pF
V
V
25
mW
<0.1
dB
At 0 dB digital input, R
L
= 32
40
80
dB
dB
32
dB
91
54
58
dB
dB
dB
----------------------------
(
)
----------------------------
(
)
S
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