參數(shù)資料
型號(hào): AK4555VT
廠(chǎng)商: Asahi Kasei Microsystems Co.,Ltd
元件分類(lèi): Codec
英文描述: Low Power & Small Package 20bit ツヒ CODEC
中文描述: 低功耗
文件頁(yè)數(shù): 5/17頁(yè)
文件大小: 200K
代理商: AK4555VT
ASAHI KASEI
[AK4555]
MS0363-E-01
2005/08
- 5 -
ANALOG CHARACTERISTICS
(Ta=25
°
C; VDD=2.5V; fs=44.1kHz; Signal Frequency=1kHz; SCLK=64fs; Measurement frequency=20Hz
20kHz;
unless otherwise specified)
Parameter
ADC Analog Input Characteristics:
(Note 2)
Resolution
S/(N+D)
(
0.5dB Input)
D-Range
(
60dB Input, A-weighted)
S/N
(A-weighted)
Interchannel Isolation
Interchannel Gain Mismatch
Input Voltage
(Note 3)
Input Resistance
Power Supply Rejection
(Note 4)
DAC Analog Output Characteristics:
Resolution
S/(N+D)
D-Range
(
60dB Output, A-weighted)
S/N
(A-weighted)
Interchannel Isolation
Interchannel Gain Mismatch
Output Voltage
(Note 3)
Load Resistance
Load Capacitance
Power Supply Rejection
(Note 4)
Power Supplies
Power Supply Current
AD+DA
PWADN= “H”, PWDAN= “H”
AD
PWADN= “H”, PWDAN= “L”
DA
PWADN= “L”, PWDAN= “H”
Power down (Note 5) PWADN= “L”, PWDAN= “L”
Power Consumption
AD+DA
PWADN= “H”, PWDAN= “H”
AD
PWADN= “H”, PWDAN= “L”
DA
PWADN= “L”, PWDAN= “H”
Power down (Note 5) PWADN= “L”, PWDAN= “L”
Note 2. The offset of ADC is removed by internal HPF.
Note 3. Input/Output of ADC and DAC scales with VDD voltage. 0.6 x VDD(typ).
Note 4. PSR is applied to VDD with 1kHz, 50mV. No signal is input to AINL/R pins and “0” data is input to SDTI pin.
Note 5. In case of power-down mode, all digital input including clocks pins (MCLK, SCLK and LRCK) are held to VDD
or VSS. PWADN and PWDAN pins are held to VSS.
min
typ
max
Units
-
-
20
-
-
-
-
0.5
1.65
-
-
Bits
dB
dB
dB
dB
dB
Vpp
k
dB
70
82
82
80
-
1.35
40
-
80
89
89
95
0.2
1.50
70
45
-
-
20
-
-
-
-
0.5
1.65
-
30
-
Bits
dB
dB
dB
dB
dB
Vpp
k
pF
dB
75
86
86
80
-
1.35
10
-
-
85
92
92
95
0.2
1.5
-
-
50
-
-
-
-
-
-
-
-
8
4
4.4
10
20
10
11
25
13
-
-
50
32.5
-
-
125
mA
mA
mA
μ
A
mW
mW
mW
μ
W
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