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PDF STA321 Data sheet ( Hoja de datos )
| Número de pieza | STA321 | |
| Descripción | 4-channel digital audio system | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de STA321 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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STA321
4-channel digital audio system with FFX™ driver
Features
High efficiency FFX™ class-D modulator
100-dB dynamic range
Two stereo channels with I2S input/output data
interface
16-bit stereo ADC input with PGA and
microphone biasing
Analog and digital muxing/mixing capability
4-channel input sample rate converter
(8 kHz to 192 kHz)
Four channels of 24-bit audio processing
Flexible channel mapping and routing
Output configurations:
– 2.0
– 2.1
– 4.0
– Mono
Embedded CMOS bridge: up to 0.5 W/channel
pfStart™ for pop-free single-ended operations
Play and record simultaneous operation
Pre and post mix stages
Individual channel and master gain/attenuation
LQFP-64 package
with exposed pad down (EPD)
Digital gain/attenuation -105 dB to +36 dB in
0.5-dB steps
Soft volume update and muting
DC-blocking selectable high-pass filter
Selectable de-emphasis filter
Up to 13 28-bit user programmable biquads
(EQ) per channel
Bass/treble tone control
Ternary, binary or phase shift modulation
PWM output
Headphone output with jack detector
I2C control.
Table 1. Device summary
Order code
Temperature range
STA321
0 to 70 °C
STA321TR
0 to 70 °C
Package
LQFP-64 EPD
LQFP-64 EPD
Packaging
Tray
Tape and reel
October 2009
Doc ID 15351 Rev 3
1/157
www.st.com
1
1 page  
STA321
Contents
17 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
18 Trademarks and other acknowledgements . . . . . . . . . . . . . . . . . . . . . 155
19 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Doc ID 15351 Rev 3
5/157
5 Page 
STA321
Pin description
Table 2. Pin list (continued)
Pin Pull
Name
Type
Description
17 -
18 -
19 H
CLKOUT
SDA
MUTE
Out (digital)
In/Out (digital)
In (digital)
21 - REG_BYPASS In (analog)
24 - BIAS
In/Out (analog)
Buffered clock output
I2C serial data
Mute (active high)
DC regulator bypass:
0: normal operation, regulator enabled
1: regulator bypassed
ADC microphone bias voltage
26 -
27 -
29 -
30 -
VLO
VHI
INR1
INR2
In (analog)
In (analog)
In/Out (analog)
In/Out (analog)
ADC low reference voltage
ADC high reference voltage
ADC right channel line input1
ADC right channel line input2
31 -
32 -
33 -
VCM
INL2
INL1
34 H RSTN
35 - STBY
36 -
37 -
38 -
EAPWM4
EAPWM3
EAPWM2
In/Out (analog)
In (analog)
In (analog)
In (digital)
In (digital)
Out (digital)
Out (digital)
Out (digital)
ADC common mode voltage
ADC left channel line input2 or microphone input2
ADC left channel line input1 or microphone input1
Reset:
0: reset state
1: normal operation
Standby mode:
0: normal operation
1: power-down
External amplifier PWM 4B
External amplifier PWM 4A
External amplifier PWM 3B
39 - EAPWM1
40 H EAFTN
Out (digital)
Out (digital)
41 - EATSN
Out (digital)
External amplifier PWM 3A
External power fault signal:
0: fault
1: normal operational mode
External amplifier control:
0: active
1: 3-state
42 -
43 -
EAPDN
ACLK
44 L I2CDIS
48 L
51 -
TM
NC
Out (digital)
External amplifier powerdown (active low)
In (digital), schmitt tr Reserved pin, connect to ground
In (digital)
I2C disable:
0: I2C enabled
1: I2C disabled
In (digital)
Test mode:
0: normal operation
- Not connected
Doc ID 15351 Rev 3
11/157
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet STA321.PDF ] | |
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