AK4635 Datasheet, PDF (8/81 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP

[AK4635]
Parameter
Min
Typ
max
Units
Speaker-Amp Characteristics: SDTI Æ SPP/SPN pins, ALC2 bit = “0”, SPKG bit = “0”, C_L = 3μF, R_series = 10Ω x 2,
BTL, SVDD = 3.8V
Output Voltage (0dBFS)
(Note 12)
-
2.5
-
Vrms
S/(N+D) (Note 13)
-
20
-
dB
Output Noise Level (Note 13)
-
-68
-
dBV
Load Impedance (Note 14)
50
-
-
Ω
Load Capacitance
-
-
3
μF
V Input Characteristics:
Maximum Input Voltage (Note 17)
-
1.2
-
Vpp
Pull Down Current
-
1.0
-
μA
V Output Characteristics:
Output Gain
VIN = 100kHz (GCA = 0dB) (Note 18) TBD
6.0
TBD
dB
Maximum Output at DC output
TBD
2.52
-
Vpp
Voltage
(Note 18)
at Sag Compensation Output
100μF+4.7μF, AVDD ≥ 3.0 V
-
2.4
-
Vpp
at Sag Compensation Output
47μF+4.7μF, AVDD ≥ 3.1V
-
2.4
-
Vpp
Clamp Voltage
at DC output (Note 18)
-
50
-
mV
S/N
BW = 100kH ∼ 6MHz
(Note 18)
-
66
-
dB
Secondary Distortion VIN = 3.58MHz, 1.0Vpp (Sin Wave)
(Note 18, Note 19)
-
-45
-
dB
Load Resistance
140
150
-
Ω
Load Capacitance C_L1 (Figure 4)
-
C_L2 (Figure 5)
-
C_L3 (Figure 4, Figure 5) (Note 20)
-
-
30
pF
-
15
pF
-
400
pF
LPF
Frequency Response
Response at 6.75MHz
TBD
-0.5
-
dB
Input=1.26Vpp, Sin Wave
(0dB at 100kHz)
Response at 27MHz
-
-40
TBD
dB
Group Delay
|GD3MHz − GD6MHz|
-
10
100
ns
GCA Characteristics:
Step Size
GCA = −1.0dB ∼ +10.5dB
TBD
0.5
TBD
dB
Power Supplies
Power Up (PDN pin = “H”)
All Circuit Power-up Except Video Amp (Note 21)
AVDD+DVDD
fs = 8kHz
-
9
-
mA
fs = 48kHz
-
12
TBD
mA
SVDD: Speaker-Amp Normal Operation (No Output)
SVDD=3.3V
-
1.5
TBD
mA
Video Amp Power-up : (Note 22) (Note 24)
AVDD+DVDD
-
8
TBD
mA
All Circuit Power-up : (Note 23) (Note 24)
AVDD+DVDD fs = 48kHz
-
19
TBD
mA
Power Down (PDN pin = “L”) (Note 25)
AVDD+DVDD+SVDD
-
1
TBD
μA
Note 7. The voltage difference between MICP and MICN pins. AC coupling capacitor should be inserted in series at each
input pin. Full-differential mic input is not available at MGAIN3-0 bits = “1000” or “0000”. Maximum input
voltage of MICP and MICN pins are proportional to AVDD voltage, respectively.
Vin = |(MICP) − (MICN)| = 0.069 x AVDD(max)@MGAIN3-0 bits = “0001”,
0.035 x AVDD(max)@MGAIN3-0 bits = “0010”, 0.017 x AVDD(max)@MGAIN3-0 bits = “0011”,
0.218x AVDD(max)@MGAIN3-0 bits = “0100”, 0.097x AVDD(max)@MGAIN3-0 bits = “0101”,
0.048x AVDD(max)@MGAIN3-0 bits = “0110”, 0.024x AVDD(max)@MGAIN3-0 bits = “0111”,
Rev. 0.6
2007/10
-8-