WM8510GEDS/RV Wolfson Microelectronics, WM8510GEDS/RV Datasheet - Page 62

• Manufacturer Part Number: WM8510GEDS/RV
• Description: Audio CODECs VolP MONO CODEC 28-pin
• Manufacturer: Wolfson Microelectronics

Specifications of WM8510GEDS/RV

• Operating Supply Voltage: - 0.3 V to + 7 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8510
w
VMID
The analogue circuitry will not work when VMID is disabled (VMIDSEL[1:0] = 00b). The impedance of
the VMID resistor string, together with the decoupling capacitor on the VMID pin will determine the
startup time of the VMID circuit.
Table 54 VMID Impedance Control
BIASEN
Table 55 BIASEN Control
ESTIMATED SUPPLY CURRENTS
When either the DAC or ADC are enabled it is estimated that approximately 4mA will be drawn from
DCVDD when DCVDD=1.8V and fs=48kHz (This will be lower at lower sample rates). When the PLL
is enabled an additional 700 microamps will be drawn from DCVDD.
Table 45 shows the estimated 3.3V AVDD current drawn by various circuits, by register bit.
Table 56 AVDD Supply Current
R1
Power
management 1
R1
Power
management 1
BUFDCOPEN
MONOEN
PLLEN
MICBEN
BIASEN
BUFIOEN
VMIDSEL
BOOSTEN
INPPGAEN
ADCEN
MONOEN
SPKPEN
SPKNEN
MONOMIXEN
SPKMIXEN
DACEN
REGISTER BIT
REGISTER
ADDRESS
REGISTER
ADDRESS
1:0
BIT
3
0.1
0.2
1.4 (with clocks applied)
0.5
0.3
0.1
10K=>0.3, less than 0.1 for 50k/500k
0.2
0.2
x64 (ADCOSR=0)=>2.6, x128 (ADCOSR=1)=>4.9
0.2
1mA from SPKVDD + 0.2mA from AVDD in 5V mode
1mA from SPKVDD + 0.2mA from AVDD in 5V mode
0.2
0.2
x64 (DACOSR=0)=>1.8, x128(DACOSR=1)=>1.9
BIT
VMIDSEL
LABEL
BIASEN
LABEL
AVDD CURRENT (MILLIAMPS)
00
0
DEFAULT
DEFAULT
Reference string impedance to VMID pin
(determines startup time):
00=off (open circuit)
01=50k Ω
10=500k Ω
11=5k Ω (for fastest startup)
Analogue amplifier bias control
0=Disabled
1=Enabled
DESCRIPTION
DESCRIPTION
PD, Rev 4.5 ,September 2008
Production Data
62