WM8904ECS/R Overview
A 36-UFBGA, WLCSP package is provided to save space. It is adopted to package in the Tape & Reel (TR) way. In numerous applications, this electronic part can deliver high-efficiency performance as a type of Stereo Audio. The mounting type is Surface Mount. When the operating performance is set to -40°C~85°C, it can operate normally. The board is integrated with 2 / 2 ADCs and DACs. A supply voltage of 1.71V~2V is applied to the analog circuit. A supply voltage of 1.42V~3.6V is applied to the digital circuit. Transmission lines have 36 terminations to prevent signals from reflecting. This is a 36-pin electronic device. Using the Surface Mount technology, it is mounted to a PCB. There is no supply voltage for it. From a supply voltage of 3.6V, it can operate. To convert digital signals into analog signals, there are 2 D/A converters.
WM8904ECS/R Features
Embedded in the 36-UFBGA, WLCSP package
Operating temperature of -40°C~85°C
2 / 2 ADCs / DACs

WM8904ECS/R Applications
There are a lot of Cirrus Logic Inc.
WM8904ECS/R CODECs Interface ICs applications.

Autonomous vehicles & robots
Backstop gauging
Ball screw positioning
Converting
Conveying
Cut-to-length
Filling
Food & beverage
Linear measurement
Material handling

Factory Lead Time	21 Weeks
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	36-UFBGA, WLCSP
Number of Pins	36
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Published	2012
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	36
Type	Stereo Audio
Terminal Position	BOTTOM
Terminal Form	BALL
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Number of Functions	1
Supply Voltage	1V
Terminal Pitch	0.4mm
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Operating Supply Voltage	3.6V
Interface	2-Wire, Analog, Serial
Operating Mode	SYNCHRONOUS
Resolution	3 B
Voltage - Supply, Analog	1.71V~2V
Voltage - Supply, Digital	1.42V~3.6V
Signal to Noise Ratio (SNR)	91 dB
Number of D/A Converters	2
Sigma Delta	Yes
Number of ADCs / DACs	2 / 2
Filter	YES
S/N Ratio, ADCs / DACs (db) Typ	91 / 96
Companding Law	A/MU-LAW
Height Seated (Max)	0.733mm
RoHS Status	RoHS Compliant