ak4651 AKM Semiconductor, Inc., ak4651 Datasheet - Page 11

• Manufacturer Part Number: ak4651
• Description: 16bit ?? Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Parameter
Headphone-Amp Characteristics: R
Output Voltage (Note 14)
S/(N+D)
S/N
Interchannel Isolation (−6dBFS Input)
Interchannel Gain Mismatch (−6dBFS Input)
Load Resistance
Load Capacitance (Note 15)
Headphone Detection: HDT pin
Comparator Voltage Level (Note 16)
Internal pull up Resistance
Speaker-Amp Characteristics: R
Output Voltage (Note 17)
S/(N+D)
S/N
Load Resistance
Load Capacitance
Mono Output: DAC → MIX → MOUT2 pin
Output Voltage (Note 18)
Load Resistance (Note 19)
Load Capacitance (Note 15, Note 19)
Mono Input: MIN pin
Maximum Input Voltage (Note 20)
Input Resistance (Note 21)
BEEP Input: BEEP pin, External input resistance = 20kΩ
Maximum Input Voltage (Note 22)
Feedback Resistance
Output Voltage (0.8Vpp input)
Note 14. Output voltage is proportional to AVDD voltage. Vout = 0.12 x AVDD Vrms(typ)@−6dBFS.
Note 15. When the output pin drives a capacitive load, a resistor should be added in series between the output pin and
Note 16. Comparator Voltage Level is proportional to HVDD voltage. Vth = 0.3 x HVDD(min), 0.7 x HVDD(max).
Note 17. Output voltage is proportional to HVDD voltage. Vout = 0.28 x AVDD Vrms(typ)@−6dBFS at Full-differential
Note 18. Output Voltage is proportional to AVDD voltage. Vout = 0.6 x AVDD(typ).
Note 19. These values do not include the input resistance or capacitance of the MIN pin.
Note 20. Maximum Input Voltage is proportional to AVDD voltage. Vin = 0.6 x AVDD(typ).
Note 21. When ALC2 Gain is changed, this typical value changes between 22kΩ and 26kΩ.
Note 22. Maximum Input Voltage depends on AVDD voltage, internal feedback resistance (Rf) and external input
MS0503-E-00
BEEP pin → HPL/HPR pins
BEEP pin → SPP/SPN pins, ALC2 bit = “0”
capacitive load.
output.
resistance (Ri). Vin = 0.6 x AVDD x Ri / Rf (typ).
(A-weighted)
(A-weighted)
0dBFS Input
−6dBFS Input
0dBFS Input
−6dBFS Input
L
−2.5dBFS Input
−7.5dBFS Input
−2.5dBFS Input
−7.5dBFS Input
=8Ω, BTL, DAC → MOUT2 pin → MIN pin → SPP/SPN pins, ALC2=OFF
L
=16Ω, DAC → HPL/HPR pins, DATT=0dB
- 11 -
0.045
0.32
0.99
0.75
1.26
min
50
80
60
16
50
40
80
30
12
8
-
-
-
-
-
-
-
-
-
-
-
-
0.82
1.98
0.41
1.55
0.94
1.98
1.98
0.09
2.53
100
typ
0.1
35
60
90
85
20
55
90
24
20
-
-
-
-
-
-
-
0.135
max
0.50
2.31
1.13
3.80
300
150
30
36
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[AK4651]
2006/04
Units
Vrms
Vrms
Vrms
Vrms
Vpp
Vpp
Vpp
Vpp
Vpp
dB
kΩ
kΩ
kΩ
kΩ
dB
dB
dB
dB
pF
dB
dB
dB
pF
pF
Ω
V
Ω