AT89C51SND2C-7FTUL Atmel, AT89C51SND2C-7FTUL Datasheet - Page 99

• 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

15.3
4341H–MP3–10/07
Audio Supplies and Start-up
Table 15-27. PA Operating Mode
Table 15-28. PA Low Power Mode
In operating mode AUDVBAT (supply of the audio power amplifier) must be between 3.2V and
5,5V.
AUDVDD, HSVDD and VDD must be inferior or equal to AUDVBAT.
A typical application is AUDVBAT connected to a battery and AUDVDD, HSVDD and VDD sup-
plied by regulators.
AUDVBAT must be present at the same time or before AUDVDD, HSVDD and VDD.
AUDRST must be active low (0) until the voltages are not etablished and reach the proper
values.
To avoid noise issues, it is recommended to use ceramic decoupling capacitors for each supply
closed to the package. The track of the supplies must be optimized to minimize the resistance
especially on AUDVBAT where all the current from the power amplifier comes from.
Note:
APALP
APAON
0
1
Refer to the application diagram.
0
0
1
1
Power Mode
0110
1000
1001
1010
1011
1100
1101
0111
1110
1111
APAPRECH
0
1
0
1
High power mode
Low power mode
AT8xC51SND2C/MP3B
Input Capacitors Precharge
Operating Mode
Forbidden State
Active Mode
Stand-By
-10
-13
-16
-19
-22
-1
-4
-7
5
2
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