AK4687 AKM [Asahi Kasei Microsystems], AK4687 Datasheet - Page 6

• Manufacturer Part Number: AK4687
• Description: Asynchronous Stereo CODEC with Capless Stereo Selector
• Manufacturer: AKM [Asahi Kasei Microsystems]

(Ta=25°C; AVDD1=AVDD2 = DVDD= 3.3V; VSS1=VSS2=VSS3 =VSS4 =VSS5 =0V; fs=48kHz; BICK=64fs;
Signal Frequency=1kHz; 24bit Data; Measurement Frequency = 20Hz∼ 20kHz at fs=48kHz, 20Hz~40kHz at fs=96kHz;
20Hz~40kHz at fs=192kHz, all blocks are synchronized, unless otherwise specified)
Parameter
Pre-Amp Characteristics:
Feedback Resistance Rf
Input Resistance
Output Level
Load Resistance
Load Capacitance
Analog Input (LIN1-3, RIN1-3pin) to ADC Analog Input Characteristics
Resolution
S/(N+D)
DR
S/N
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Power Supply Rejection
DAC to Analog Output (LOUT, ROUT pin) Characteristics
Resolution
S/(N+D)
DR
S/N
Interchannel Isolation
Interchannel Gain Mismatch
DC Offset (at output pin)
Gain Drift
Output Voltage
Load Resistance
Load Capacitance
Power Supply Rejection
Note 3. Input range for ADC full scale when the external input resistance is 47kΩ, feedback resistance is 39kΩ and input
Note 4. R
Note 5. This value is the channel isolation for all other channels between LIN1-3 and RIN1-3.
Note 6. PSR is applied to AVDD1, AVDD2 and DVDD with 1kHz, 50mVpp.
MS1307-E-00
signal is 2.3Vrms.
external device.
L
or C
(-60dBFS)
(-60dBFS)
(input off)
(“0” data)
(0dBFS)
(-1dBFS)
L
of Figure 2. Load resistance and capacitance when the output signal of the LO/RO pin is used for an
LO / RO pins
C
R
Ri
L
L
LOUT/ROUT= 2 x AVDD2/3.3
(C1)
fs=48kHz
fs=48kHz, A-weighted
fs=48kHz, A-weighted
fs=48kHz
fs=96kHz
fs=192kHz
fs=48kHz, A-weighted
fs=96kHz, A-weighted
fs=192kHz, A-weighted
fs=48kHz, A-weighted
fs=96kHz, A-weighted
fs=192kHz, A-weighted
(ADC=0dBFs)
(Note
(Note
(Note
ANALOG CHARACTERISTICS
5)
6)
6)
(Note
(Note
(Note
- 6 -
3)
4)
4)
1.82
1.85
min
12
18
18
–5
5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.91
100
105
105
105
105
105
105
100
typ
39
47
83
99
99
50
50
95
93
93
50
62
0
0
0
2
max
2.00
2.15
+5
92
92
20
24
24
30
-
-
-
-
[AK4687]
ppm/°C
ppm/°C
Units
Vrms
Vrms
2011/05
Bits
Bits
mV
kΩ
kΩ
kΩ
kΩ
pF
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
pF
dB