AK4632 Datasheet, PDF (9/70 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Mono CODEC with ALC & MIC/SPK/Video-AMP

ASAHI KASEI
[AK4632]
Parameter
min
typ
Y Input Characteristics:
Maximum Input Voltage (Note 22)
-
1.2
Pull Down Current
-
2.0
V Output Characteristics:
Output Gain
VIN=100kHz (GCA=0dB)
5.0
6.0
Maximum Output at DC output
2.4
2.52
Voltage
at Sag Compensation Output
-
2.4
100µF+2.2 uF, VVDD ≥ 3.135 V
at Sag Compensation Output
47µF+1.0uF, VVDD ≥ 3.135 V
-
2.4
Clamp Voltage
at DC output
-
0.15
S/N
BW=100kH ∼ 6MHz
-
66
Secondary Distortion VIN=3.58MHz, 1.0Vpp(Sin Wave)
-
-45
(Note 23)
Load Resistance
140
150
Load Capacitance
C1(See Figure 2)
C2(See Figure 2) (Note 24)
-
-
-
-
LPF
Frequency Response
Response at 6.75MHz
-3.0
-0.5
Input=1.26Vpp, Sin Wave Response at 27MHz
(0dB at 100kHz)
-
-30
Group Delay
|GD3MHz −GD6MHz|
-
10
GCA Characteristics:
Step Size
GCA = -1.0dB ∼ +10.5dB
0.1
0.5
Power Supplies
Power Up (PDN = “H”)
All Circuit Power-up: (Note 25)
AVDD+DVDD
fs=8kHz
-
9
fs=48kHz
-
11.5
SVDD: Speaker-Amp Normal Operation (SPPS bit = “1”, No Output)
SVDD=3.3V
-
7
SVDD=5.0V
-
9
VVDD (Note 26)
VVDD=3.3V
-
7.5
VVDD=5.0V
-
8
Power Down (PDN = “L”) (Note 27)
AVDD+DVDD+SVDD+VVDD
-
10
max
-
-
7.0
-
-
-
-
-
-
-
15
400
-
-20
100
0.9
-
17.5
-
27
-
12
100
Units
Vpp
µA
dB
Vpp
Vpp
Vpp
V
dB
dB
Ω
pF
pF
dB
dB
nsec
dB
mA
mA
mA
mA
mA
mA
µA
Note 22. Input Voltage doesn’t depend on VVDD.
Note 23. In the case of using Sag Compensation Circuit with 47µF+ 1.0uF and SAGC1-0 bits = “10”
Note 24. R1 and C2 compose of Low Pass Filter(LPF) in Figure 2. The cut off frequency of LPF is 10.6MHz at C2 =
400pF.
R1
75 ohm
Video Signal Output
R2
C1
C2
75 ohm
Figure 2. Load Capacitance C1 and C2
MS0396-E-00
-9-
2005/06