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WM8524CGEDT

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P25
WM8524 Production Data
w
PD, Rev 4.1, October 2011
4
PIN DESCRIPTION
PIN NO NAME TYPE DESCRIPTION
1
LINEVOUTL
Analogue Out Left line output
2
CPVOUTN
Analogue Out Charge Pump negative rail decoupling pin
3
CPCB
Analogue Out Charge Pump fly back capacitor pin
4
LINEGND
Supply Charge Pump ground
5
CPCA
Analogue Out Charge Pump fly back capacitor pin
6
LINEVDD
Supply Charge Pump supply
7
DACDAT
Digital In Digital audio interface data input
8
LRCLK
Digital In Digital audio interface left/right clock
9
BCLK
Digital In Digital audio interface bit clock
10
MCLK
Digital In Master clock
11
MUTE ¯¯¯¯¯
Digital In
0 = Mute enabled
1 = Mute disabled
12
AIFMODE
Digital In
Tri-level
0 = 24-bit Left Justified
1 = 24-bit I
2
S
Z = 24-bit Right Justified
13
AGND
Supply Analogue ground
14
VMID
Analogue Out Analogue midrail decoupling pin
15
AVDD
Supply Analogue supply
16
LINEVOUTR
Analogue Out Right line output
Note: Tri-level pins which require the ‘Z’ state to be selected should be left floating (open)
Production Data WM8524
w
PD, Rev 4.1, October 2011
5
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously
operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given
under Electrical Characteristics at the test conditions specified.
ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically
susceptible to damage from excessive static voltages. Proper ESD precautions must be taken during handling
and storage of this device.
Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to determine acceptable storage
conditions prior to surface mount assembly. These levels are:
MSL1 = unlimited floor life at <30C / 85% Relative Humidity. Not normally stored in moisture barrier bag.
MSL2 = out of bag storage for 1 year at <30C / 60% Relative Humidity. Supplied in moisture barrier bag.
MSL3 = out of bag storage for 168 hours at <30C / 60% Relative Humidity. Supplied in moisture barrier bag.
The Moisture Sensitivity Level for each package type is specified in Ordering Information.
CONDITION MIN MAX
AVDD, LINEVDD
-0.3V +4.5V
Voltage range digital inputs
LINEGND -0.3V LINEVDD +0.3V
Voltage range analogue inputs
AGND -0.3V AVDD +0.3V
Temperature range, T
A
-40°C +125°C
Storage temperature after soldering
-65°C +150°C
Notes:
1. Analogue grounds must always be within 0.3V of each other.
2. LINEVDD and AVDD must always be within 0.3V of each other.
RECOMMENDED OPERATING CONDITIONS
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Analogue supply range
AVDD, LINEVDD 2.97 3.3 3.63 V
Ground
AGND, LINEGND 0 V
WM8524 Production Data
w
PD, Rev 4.1, October 2011
6
ELECTRICAL CHARACTERISTICS
Test Conditions
LINEVDD=AVDD=3.3V, LINEGND=AGND=0V, T
A
=+25
°
C, Slave Mode, fs=48kHz, MCLK=256fs, 24-bit data, unless otherwise
stated.
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Analogue Output Levels
Output Level
0dBFS 1.89 2.1 2.31 Vrms
Load Impedance
1 kΩ
Load Capacitance
No external RC filter 300 pF
With filter shown in
Figure 16
1 µF
DAC Performance
Signal to Noise Ratio
SNR
R
L
= 10kΩ
A-weighted
106 dB
R
L
= 10kΩ
Un-weighted
104 dB
Dynamic Range
DNR
R
L
= 10kΩ
A-weighted
104 dB
Total Harmonic Distortion THD
-1dBFS -89 dB
0dBFS -86 dB
AVDD + LINEVDD
Power Supply Rejection Ratio
PSRR
100Hz 54 dB
1kHz 54 dB
20kHz 50 dB
Channel Separation
1kHz
100
dB
20Hz to 20kHz
95
dB
System Absolute Phase
0 degrees
Channel Level Matching
0.1 dB
Mute Attenuation
-120 dB
DC Offset at LINEVOUTL and
LINEVOUTR
-1 0 1 mV
Digital Logic Levels
Input HIGH Level
V
IH
0.7
LINEVDD
V
Input LOW Level V
IL
0.3
LINEVDD
V
Input Capacitance 10 pF
Input Leakage -0.9 0.9 A
TERMINOLOGY
1. Signal-to-Noise Ratio (dB) – SNR is a measure of the difference in level between the maximum theoretical full scale
output signal and the output with no input signal applied.
2. Total Harmonic Distortion (dB) – THD is the level of the rms value of the sum of harmonic distortion products relative to
the amplitude of the measured output signal.
3. All performance measurements carried out with 20kHz low pass filter, and where noted an A-weighted filter. Failure to
use such a filter will result in higher THD and lower SNR readings than are found in the Electrical Characteristics. The
low pass filter removes out of band noise; although it is not audible it may affect dynamic specification values.
4. Mute Attenuation – This is a measure of the difference in level between the full scale output signal and the output with
mute applied.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P25

WM8524CGEDT

Mfr. #:
Buy WM8524CGEDT
Manufacturer:
Cirrus Logic
Description:
Audio D/A Converter ICs Stereo DAC, 2Vrms
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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