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PDF ATSAM3108B Data sheet ( Hoja de datos )
| Número de pieza | ATSAM3108B | |
| Descripción | Audio Processing | |
| Fabricantes | ATMEL Corporation | |
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Features
• Eigwhwt wD.SDaPtsaSahnedet24U4-.cboitmAudio Router On-chip
• 32 kHz to 96 kHz Sampling Rate
• 16-bit Microcontroller On-chip
• Variety of I/Os, including SmartMedia® and DataFlash®
• Embedded RAM for Single Chip Operation (768 Kbits)
• Warm Start Power-down
• 1µA Typical Deep Power-down, 0.5 mW/MIPS Typical Operating
• Available in a 64-lead LQFP Package
• Ideal for Real-time Audio Applications
– Professional Effect Processing (Reverb, Chorus, Flanger, Distortion, Equalizer)
– Internal Routing and Mixing of 8-input/8-output Channels
– Sampling Rate Conversion of Digital Inputs at up to 96 kHz at 24 bits
• Typical Applications: Professional Audio, Studio Equipment, Digital Mixer, Effect
Devices, Equalizer
1. Description
The ATSAM3108B is a member of the new ATSAM3000 family that uses DSP array
technology. The ATSAM3108B includes eight 24-bit DSPs, a 24-bit Audio Router and
a general-purpose 16-bit on-chip CISC microcontroller. Its high performance and flex-
ibility with 8-input/8-output channels enables implementation of audio applications in
professional-quality sound production such as effect processing and digital mixing. A
variety of I/Os, including, SmartMedia® and DataFlash® are provided. Sampling rates
up to 96 kHz at 24 bits are supported.
Audio
Processing
ATSAM3108B
Eight-channel
Multiprocessing
Audio DSP
6092C–DRMSD–12-Feb-07
1 page  
ATSAM3108B
www.DataSheet4U.com
• A small 256-Kbit external EEPROM with an SPI interface such as Atmel AT25256
• A DataFlash (current capacities range from 1Mbit to 64 Mbits) if audio storage functions are
required
• A SmartMedia card (supported capacities from 8 Mbytes to 128 Mbytes)
• The parallel MPU type interface.
5.2 I/O Selection Considerations
I/Os are organized in groups, which can be mutually exclusive because they share the same IC
pins (please refer to the pinout to identify the exclusions). The two main types of operation are
host controlled and stand-alone.
5.2.1
Host-controlled Operation
There are three main possible ways of communication with a host processor:
• 8-bit parallel MPU type bidirectional interface. Signals: D7 - D0, CS, WR, RD, A0, IRQ
• Asynchronous serial, MIDI_IN and optionally MIDI_OUT
• Synchronous serial. Signals: SDIN, SCLK, SYNC, INT
5.2.2
Stand-alone Operation
Possible stand-alone modes are:
• Firmware into external EEPROM or DataFlash
• Firmware into external SmartMedia. In this case, the firmware should reside in the
SmartMedia reserved sectors starting at sector # 1.
6092C–DRMSD–12-Feb-07
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ATSAM3108B
www.DataSheet4U.com
Table 8-1.
Package Dimensions in mm
Denomination
Min
A 1.40
A1 0.05
A2 1.35
L 0.45
D
D1
E
E1
P
B 0.17
Nom
1.50
0.10
1.40
0.60
12.00
10.00
12.00
10.00
0.50
0.22
Max
1.60
0.15
1.45
0.75
0.27
9. Electrical Characteristics
9.1 Absolute Maximum Ratings (*)
Ambient Temperature (power applied).............. -40° C to 85° C
Storage Temperature ...................................... -65° C to 150° C
Voltage on any pin
X1, LFT ....................................................... -0.3 to VC18 + 0.3V
Others ......................................................... -0.3 to VC33 + 0.3V
Supply Voltage..........................................................................
VC18....................................................................-0.3V to 1.95V
VC3 .......................................................................-0.3V to 3.6V
Maximum IOL per I/O pin................................................. 4 mA
*NOTICE:
Stresses beyond those listed under "Absolute
Maximum Ratings" may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
Recommended Operating Conditions of this
specification is not implied. Exposure to absolute
maximum rating conditions for extended periods
may affect device reliability.
9.2 Recommended Operating Conditions
Table 9-1. Recommended Operating Conditions
Symbol
Parameter
Min Typ Max Unit
VC18
VC33
Supply voltage
Supply voltage (1)
1.65 1.8 1.95
V
VC18 +
3 3.3 1.5 V
3.6
PWRIN
Supply voltage PWRIN pin
1.75 1.9 1.95
V
TA
Note:
Operating ambient temperature
0 - 70 °C
1. Operation at lower VC33 values down to VC18 is possible, however external timing may be impaired. Contact Atmel in case of
use of these circuits with VC33 outside the recommended operating range.
6092C–DRMSD–12-Feb-07
11
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