ak4564 AKM Semiconductor, Inc., ak4564 Datasheet - Page 8

• Manufacturer Part Number: ak4564
• Description: 16bit Codec With Built-in Alc And Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

DAC Analog Output characteristics: Measured via LOUT1/ROUT1, LOUT2/ROUT2, VOL=+6.5dB
Resolution
S/(N+D) (0dBFS)
DR (-60dBFS, A-Weighted)
S/N (A-Weighted)
Output Voltage (Note 19)
Interchannel Isolation
Interchannel Gain Mismatch
Load Resistance
Load Capacitance (Note 13)
Headphone-Amp Characteristics: DAC à HPL/HPR pin
Output Voltage (Note 20) HVDD = 3V
S/(N+D) (Note 20) HVDD = 3V
Output Noise Voltage (A-Weighted);
Interchannel Isolation; HPG=“0”, HVDD=3V, R
Interchannel Gain Mismatch; HPG=“0”, HVDD=3V, R
Load Resistance; HVDD=2.6 3.6V, HPG = “0”
Load Capacitance (C1 in Figure 2)
Speaker-Amp Characteristics: R
Output Voltage (-6.5dBV Input)
S/(N+D) (-2dBV Output)
S/N (A-Weighted)
Load Resistance
Load Capacitance
ASAHI KASEI
(Continue)
Note 19. Output voltages are proportional to AVDD voltage.
Note 20. When DAC = 0dBFS Output, OATT = 0dB, HPG = “0”, R
Note 21. When DAC = -12dBFS Output, OATT = 0dB, HPG = “1”, R
* 0dBV = 1Vrms = 2.83Vpp
MS0140-E-01
(Note 21) HVDD = 4.5V
LOUT1, ROUT1, LOUT2, ROUT2 = (1.27 x AVDD) Vpp @VOL = +6.5dB
Vpp.
(Note 21) HVDD = 4.5V
HPG=“0”, HVDD=3V, R
HPG=“1”, HVDD=4.5V, R
HVDD=4.0 5.5V, HPG = “1”
(C2 in Figure 2)
HPG=“1”, HVDD=4.5V, R
Parameter
HPG=“1”, HVDD=4.5V, R
HP-Amp
L
-
+
= 8 , BTL, MIN à SP0/SP1, ALC2 = OFF
Figure 2. Headphone-Amp Output Circuit
L
=32
Oscillation prevention circuit
L
=100
L
=32
HPL, HPR
L
=100
L
0.1
10
=32
L
=100
- 8 -
C1
16
L
= 32 , the output voltage is (0.59 x AVDD) Vpp.
L
+1.2
min
-5.5
-1.1
100
= 100 , the output voltage is (0.98 x AVDD)
76
82
82
80
10
50
50
60
60
22
30
81
-4
8
+
C2
100
-4.7
-0.3
typ
-92
-77
+2
82
88
88
70
66
80
80
60
89
-2
16
max
+2.8
+0.5
-3.9
0.5
-86
-71
0.5
0.5
6.8
16
30
30
10
0
[AK4564]
Units
dBV
dBV
dBV
dBV
dBV
dBV
2002/07
bits
k
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
pF
pF
nF
pF