AT89C51SND2C-7FTUL Atmel, AT89C51SND2C-7FTUL Datasheet - Page 91

• Manufacturer Part Number: AT89C51SND2C-7FTUL
• Description: IC 8051 MCU FLASH 64K MP3 100BGA
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51SND2C-7FTUL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, IDE/ATAPI, MMC, SPI, UART/USART, USB
• Peripherals: Audio, I²S, MP3, PCM, POR, WDT
• Number Of I /o: 32
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 2x10b; D/A 2x20b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFBGA
• Data Bus Width: 8 bit
• Data Ram Size: 2.25 KB
• Interface Type: ATAPI, I2S, IDE, SPI, UART, USB
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: AT89C51SND2C7FTUL

15.1.9
4341H–MP3–10/07
De-emphasis and dither enable
The selection between modes is done using DINTSEL 1:0 in DAC_MISC register (refer to Table
15-22.) according to Table 15-9.
Table 15-9.
The circuit features a de-emphasis filter for the playback channel. To enable the de-emphasis fil-
tering, DEEMPEN must be set to high.
Likewise, the dither option (added in the playback channel) is enabled by setting the DITHEN
signal to High.
Table 15-10. DAC Auxlilary Input Gain
Format Selection
DINTSEL 1:0
00
01
1x
AUXG 4:0
00000
00001
00010
00011
00100
00101
00110
01000
01001
01010
01011
01100
01101
10000
10001
00111
01110
01111
AT8xC51SND2C/MP3B
MSB Justified
LSB Justified
I2S Justified
Format
Gain (dB)
<-60
-12
-15
-18
-21
-24
-27
-30
-33
20
12
-3
-6
-9
9
6
3
0
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