WM8510GEDS/RV Wolfson Microelectronics, WM8510GEDS/RV Datasheet - Page 59

Audio CODECs VolP MONO CODEC 28-pin

WM8510GEDS/RV

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

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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
WM8510GEDS/RV
Manufacturer:
WOLFSON
Quantity:
20 000
Production Data
Figure 34 ADC Power Up and Down Sequence (not to scale)
w
BIASEN bits
Power Supply
POR
I
ADC Internal
Analogue Inputs
ADCDAT pin
ADCEN bit
(Note 3)
INPPGAEN bit
2
VMIDSEL/
S Clocks
State
(Note 4)
V
pora
POR Undefined
No Power
V
por_on
Power down
AVDD/2
DGND
Power Down (all cases):
1.
2.
3.
4.
Notes:
In addition to the power on sequence, it is recommended that the zero cross functions are used when
changing the volume in the PGAs to avoid any audible pops or clicks.
Table 51 Typical POR Operation (typical values, not tested)
1.
2.
(Note 1)
SYMBOL
t
t
This step enables the internal device bias buffer and the VMID buffer for unassigned
inputs/outputs. This will provide a startup reference voltage for all inputs and outputs. This will
cause the inputs and outputs to ramp towards VMID (NOT using output 1.5x boost) or 1.5 x
(AVDD/2) (using output 1.5x boost) in a way that is controlled and predictable (see note 2).
Choose the value of the VMIDSEL bits based on the startup time (VMIDSEL=10 for slowest
startup, VMIDSEL=11 for fastest startup). Startup time is defined by the value of the VMIDSEL
bits (the reference impedance) and the external decoupling capacitor on VMID.
POR
midrail_on
midrail_off
t
adcint
t
midrail_on
Soft mute DAC by setting DACMU = 1.
Disable power management register 1 by setting R1[8:0]=0x000
Disable all other output stages.
Turn off external power supplies.
DNC
Init
t
adcint
GD
MIN
Normal Operation
ADC enabled
TYPICAL
500
>10
2/fs
GD
INPPGA enabled
Device Ready
VMID enabled
ADC off
DNC
PD
MAX
Init
GD
t
adcint
UNIT
n /fs
ms
s
ADC enabled
Normal Operation
GD
PD, Rev 4.5, September 2008
t
midrail_off
Internal POR active
Power down
(Note 2)
V
por_off
WM8510
59

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