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PDF XE3006 Data sheet ( Hoja de datos )
| Número de pieza | XE3006 | |
| Descripción | (XE3005 / XE3006) Low-Power Audio CODEC | |
| Fabricantes | ETC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de XE3006 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Data Sheet
XE3005/XE3006
VSSD VSSA VSSA VDD VREF
VREG11
VREG16
Microphone
Bias
XE3006
AIN
Amp.
Σ∆
modulator
Decimator
Power supply
management
PWM
DAC
Power
amplifier
SPI
Sandman
Functions
Serial Audio
Interface
Clock
mgt
RESET
VDDPA
AOUTP
AOUTN
VSSPA
MISO SS SCK MOSI SMAD SMDA BCLK SDI SDO FSYNC MCLK
XE3005 / XE3006
Low-Power Audio CODEC
General Description
The XE3005 is an ultra low-power CODEC (Analog
to Digital and Digital to Analog Converter) for voice
and audio applications. It includes microphone
supply, preamplifier, 16-bit ADC, 16-bit DAC, serial
audio interface, power management and clock
management for the ADC and the DAC. The
sampling frequency of the ADC and of the DAC
can be adjusted from 4 kHz to 48 kHz.
The XE3006 also includes the Sandman™
function, which signals whether a relevant voice or
audio signal is present for the ADC or DAC.
Features
• Ultra low-power consumption, below 2 mW
• Low-voltage operation down to 1.8 V
• Sandman™ function to reduce system
power consumption (XE3006)
• Single supply voltage
• Adjustable sampling frequency: 4 – 48 kHz
• Digital format: 16 bit 2s complement
• Requires a minimum number of external
components
• Easy interfacing to various DSPs
• Direct connection to microphone and
speaker
• Various programming options
Applications
• Wireless Headsets
• Bluetooth™ headset
• Hands-free telephony
• Digital hearing instruments
• Consumer and multimedia applications
• All battery-operated portable audio
devices
Quick Reference Data
• supply voltage
• current (@20 kHz sampling)
• sampling frequency
• Typical dynamic range ADC
• Typical dynamic range DAC
1.8 – 3.6 V
0.4 mA
4 – 48 kHz
78 dB
78 dB
Ordering Information
Part Package
Ext. part no.
XE3005 TSSOP 20 pins
XE3006 TSSOP 24 pins
XE3005I033
XE3006I019
Temperature
range
-20 to 70° C
-20 to 70° C
Cool Solutions for Wireless Connectivity
1 page  
Data Sheet
XE3005/XE3006
2.1.2 MIC Input
The programmable pre-amplifier and the microphone bias sources VREG11 or VREG16 are optimized to operate
with electret microphones. VREG11 provides a 1.1 V reference voltage. The VREG11 can deliver up to 50 µA.
VREG11 is enabled through control register E. VREG16 is a regulated voltage of typically 1.6V and can deliver
up to 1 mA.VREG16 is always enabled.
Vcc
0.1µF
1µF 1µF
820kΩ
4 VDD
5 NRESET
6 VSSA
7 VREG16
8 VREF
9 VSSA
10 VSSD
11 VREG11
1kΩ
AIN
12
50 pF (gain is 5)
200 pF (gain is 20)
GND
Figure 3: typical microphone interface (1.1 V / 50 uA bias through VREG11)
Vcc
1kΩ*
0.1µF
1µF 1µF
820kΩ
4 VDD
5 NRESET
6 VSSA
7 VREG16
8 VREF
9 VSSA
10 VSSD
11 VREG11
12 AIN
50 pF (gain is 5)
200 pF (gain is 20)
*depends on microphone type
GND
Figure 4: typical microphone interface (1.6 V / 1 mA bias through VREG16)
5 D0212-116
5 Page 
Data Sheet
XE3005/XE3006
Figure 11 shows the block diagram of the CODEC reset.
reset to analog and
digital circuitry of codec
Power
On
Reset
deldaeylay
counter
MCLK
XE3005/6
low drive
buffer
NRESET
Figure 11: Codec reset circuitry
2.2 Power-Down Functions
2.2.1 Software Power-Down
Register I allows for the selective power down of the ADC signal channel or the DAC signal channel through SPI
control. The wake-up time, after powering down the device is typically 200µs. The maximum standby current is
96µA, depending highly upon the Master clock (MCLK), see 5.3.5.2 Low Power Modes.
2.2.2 Hardware Power-Down
The device has no power-down pin. However, by holding down (0 V) the NRESET pin (resetting the device) as
well as the pins MCLK, BCLK and FSYNC, the power consumption will reach the standby current of typically
16µA. Use the standard procedure for power up (see start-up and initialization procedure) after a hardware power
down and apply your registers setup procedure.
11 D0212-116
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet XE3006.PDF ] | |
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