WM8737LGEFL/R Wolfson Microelectronics, WM8737LGEFL/R Datasheet
WM8737LGEFL/R
Manufacturer Part Number
WM8737LGEFL/R
Description
IC, ADC, 24BIT, 96KHZ, QFN-32
Manufacturer
Wolfson Microelectronics
Datasheet
1.WM8737LGEFLR.pdf
(38 pages)
Specifications of WM8737LGEFL/R
Resolution (bits)
24bit
Sampling Rate
96kSPS
Data Interface
2-Wire, 3-Wire, Serial
Supply Voltage Range - Analog
1.8V To 3.6V
Supply Current
7.75mA
Digital Ic Case Style
QFN
No. Of Pins
32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
WM8737LGEFL/R
Manufacturer:
FCI
Quantity:
1 200
Part Number:
WM8737LGEFL/R
Manufacturer:
WOLFSON
Quantity:
20 000
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DESCRIPTION
The WM8737L is a low power stereo audio ADC designed
specifically for portable applications such as minidisc and
memory audio / voice recorders.
The device offers three sets of stereo inputs, which can be
configured for line-level signals, for internal or table-top
microphones, or for DC measurement (battery monitor). A
programmable gain amplifier can be used for automatic
level control (ALC) with user programmable hold, attack and
decay times. The device also has a selectable high pass
filter to remove residual DC offsets.
If the signal source is mono, the WM8737L can run in mono
mode, saving power. It can also mix two channels to mono,
either in the analogue or the digital domain.
Master or slave mode clocking schemes are offered. Stereo
24-bit multi-bit sigma-delta ADCs are used with digital audio
output word lengths from 16-32 bits, and sampling rates
from 8kHz to 96kHz supported.
The device is controlled via a 2 or 3 wire serial interface.
The interface provides access to all features including gain
controls, analogue or digital mono mixing, and power
management facilities. The device is supplied in a leadless
5x5mm QFN package.
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Stereo ADC with Microphone Preamplifier
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FEATURES
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APPLICATIONS
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SNR 97dB (‘A’ weighted @ 3.3V, 48kHz, normal power
THD –84dB (at –1dB, 3.3V, normal power mode)
Complete Stereo / Mono Microphone Interface
Configurable Power / Performance
Low Power Mode
Low Supply Voltages
256fs / 384fs or USB master clock rates: 12MHz, 24MHz
Audio sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,
32-pin QFN package, 5 x 5 x 0.9mm
Memory Audio / Voice Recorders
Minidisc Recorders
Portable Digital Music Systems
mode)
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48, 88.2, 96kHz generated internally from master clock
Programmable microphone preamp
Automatic Level Control
Low-noise microphone bias voltage
8.5mW at AVDD = 1.8V (stereo, mic preamps off)
20mW at AVDD = 3.3V (stereo, mic preamps off)
Analogue 1.8V to 3.6V
Digital core: 1.42V to 3.6V
Digital I/O: 1.8V to 3.6V
Copyright ©2009 Wolfson Microelectronics plc
Production Data, April 2009, Rev 4.1
WM8737L
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