AK4640_05 Datasheet, PDF (13/78 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4640]
Parameter
min
typ
max
Units
Mono Input: MIN pin
Maximum Input Voltage (Note 11)
-
1.98
-
Vpp
Input Resistance
(Note 12)
12
24
36
kΩ
Mono Output: R_L=10kΩ, DAC → MIX → MOUT2 pin
Output Voltage (Note 13)
-
1.94
-
Vpp
Load Resistance
10
-
-
kΩ
Load Capacitance (Note 14)
-
-
30
pF
AUX Input: AUXIN+, AUXIN− pins
Maximum Input Voltage
(Note 15)
-
1.98
-
Vpp
Input Resistance
25
40
55
kΩ
Step Size
1
3
5
dB
Gain Control Range
−21
-
+24
dB
Power Supplies
Power Up (PDN pin = “H”)
All Circuit Power-up:
AVDD+DVDD
(Note 16)
-
16
26
mA
PVDD
-
1.2
2
mA
HVDD: HP-AMP Normal Operation
No Output
(Note 17)
-
4
6
mA
HVDD: SPK-AMP Normal Operation
No Output
(Note 18)
-
7
18
mA
Power Down (PDN pin = “L”) (Note 19)
AVDD+DVDD
-
10
100
µA
PVDD
-
10
100
µA
HVDD
-
10
100
µA
Note 11. Maximum Input Voltage is proportional to AVDD voltage. Vin = 0.6 x AVDD(typ).
Note 12. When ALC2 Gain is changed, this typical value changes between 22kΩ and 26kΩ.
Note 13. Output Voltage is proportional to AVDD voltage. Vout = 0.588 x AVDD(typ).
Note 14. When the output pin drives a capacitive load, a resistor should be added in series between the output pin and
capacitive load.
Note 15. Maximum Input Voltage is proportional to AVDD voltage. Vin = 0.6 x AVDD(typ).
Note 16. PMMIC=PMADC=PMDAC=PMMO=PMSPK=PMHPL=PMHPR=PMVCM=PMPLL=PMXTL=PMBPM=
PMBPS=PMAUX= “1”, MCKO= “1” and Master Mode. AVDD=10mA (typ.), DVDD=6mA (typ.).
AVDD=10mA (typ.), DVDD=4mA (typ.) at MCKO= “0” in Slave Mode.
Note 17. PMMIC=PMADC=PMDAC=PMMO=PMHPL=PMHPR=PMVCM=PMPLL= PMXTL=PMBPM=PMBPS=
PMAUX= “1” and PMSPK= “0”.
Note 18. PMMIC=PMADC=PMDAC=PMMO=PMSPK=PMVCM=PMPLL=PMXTL= PMBPM=PMBPS=PMAUX=
“1” and PMHPL=PMHPR= “0”.
Note 19. All digital input pins are fixed to DVDD or DVSS. When the voltage difference among DVDD, PVDD and
AVDD is larger than 0.3V, the power supply current at power down mode increases.
MS0273-E-02
- 13 -
2005/04