USB Codec IC - CJC6811A
Cortex Like
LDO
Built-in LDO for wide operating voltage range:3.3V/1.8V
Memory
Built-in LDO for wide operating voltage range:3.3V/1.8V
Memory
Upport program memory up to 16KB
RAM:16KB SRAM
- Model Number: CJC6811A
- Data Sheet:
- Quantity:
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Product Specification
CJC6811A is a Cortex based MCU, designed for USB headphone appliances.
It integrates one 32-bit RISC CPU with 16KB SRAM, USB, UART, IIC, audio codec, GPIO, TIMER, WDT, PWM, SPI, IIS, SARADC, PLL, LDO etc.CJC6811A can boot from external flash through SPI interface. After powered on, the program is read from external flash into internal SRAM for execution.
CJC6811A can run up to 48MHz, and it is designed with special care to minimize the power consumption while allowing for the flexibility to reach for high performance. It includes the clock gating for individual IP, and CJC6811A can be further operated under different power-saving modes: Normal, Idle, Standby, Power-down, different mode have different clock and power strategy.
Features：
Cortex Like
LDO
Built-in LDO for wide operating voltage range:3.3V/1.8V
Memory
Built-in LDO for wide operating voltage range:3.3V/1.8V
Memory
Upport program memory up to 16KB
RAM:16KB SRAM
In-system programming & In-Circuit programming by USB/UART
Clock control
Programmable system clock source
4-6MHz internal RC-oscillator(1% accuracy at 25℃)
12MHz clock From USB oscillator
Support external crystal oscillator
10 kHz internal low-power RC-oscillator for watchdog and idle wake-up
USB Compliance
USB Spec.V2.0 full speed mode compatible
USB Audio Class V1.0/V2.0 compatible
USB Human Interface Device V1.1 compatible
Support USB suspend/resume/reset function
Support control, interrupt, bulk and isochronous data transfer
Audio codec
Default sample rate:192K/176.4K/96K/88.2K/48K/44.1K
Support bit length:16/20/24bit
DAC support max to 192K/16bit ADC max to 48K/16bi
I/O port
Up to 8 general purpose I/O(GPIO)
TIMER
3 internal timers
Internal or external clock source selection
Interrupt can be issued upon overflow and time-up
Each timer has two match registers
Supports the incrementing and decrementing models
Watchdog Timer
During the timeout, the outputs are one or a combination of the following signals
-----System reset
-----System interrupt
-----External interrupt
32-bit down counter
Internal or external clock source selection
A variable time-out period of reset
Access protection
PWM
One 16-bit timers PWM channel
Programmable duty control of output waveform
Auto reload mode or one-shot pulse mode
Capture and compare function
UART
Programmable baud rates, Baud rate up to 921.6K
SPI
One specified SPI interface as AHB device for boot loader and APB device for write back
Speed up to 40MHz
I2C
Compatible with Philips IIC standard
I2S
Support I2S interface
Support master mode and 16/24/32bit data width
SARADC
1 channel analog input
Brown out reset
Programmable 3 threshold levels: 2.7V/2.4V/2.0V(default 2.0V)
Optional BOD interrupt or reset
Operating temperature:-40~+85 Degree
Storage temperature:-55~+125 Degree
Package: QFN5*5-32
Moisture sensitivity level MSL3
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