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(1)工作电压 : 2.8V ~ 5.2V ;
(2) 不工作时自动进入休眠模式;
(3)支持4Mbit~64M SPI Flash;
(4) 按键功能具有长按录音、短按录音、播放、低电平保持循环播放等功能;
(5)标准的SPI通讯;
(6)录音/语音播放: 可多段录音;
(7)功放直推喇叭, 音量大、高传真、省电 , 0.5 W/8ohm;
(8)录音提示,录音前一声“BEEP”,结束时两声“BEEP”;
(9)LEDBZ : 录音时常亮,播放时 3Hz 闪烁 ;
(10)取样频率 10KHz~ 16KHz 可由芯片外部电阻调整选定。
参数 | 测试条件 | 符号 | 最小值 | 标准值 | 最大值 | 单位 |
工作电压 | LPASS=0 | VDD | 2.4 | 4.5 | 5.2 | V |
工作电流 |
CPU Run, 3.3V, LVR ON, 16MHz, IRC, ADC off, SPK off. | Iop | 8 | mA | ||
Standby-Mode, 3.3V LVR OFF | Istdby | 3 | mA | |||
8KHz, recording, DVDD=3.3V | IREC | 15 | mA | |||
8KHz, playing, DVDD=3.3V ,8-Ohm speaker | IPLA | 22 | 250 | mA | ||
Power-Down Mode, DVDD=3.3V,APOR ON | IDD1 | 5 | 10 | uA | ||
Power-Down Mode, DVDD=3.3V,APOR OFF | IDD | 0.3 | 10 | uA | ||
Power-Down Mode, LPASS=1,DVDD=3.6V | IDD2 | 1 | uA | |||
Deep-Power-Down Mode, 4.5V | IDD3 | uA | ||||
输出电压 |
I OH=1 mA, Push-pull pins | VOH1 | VDD-0.2 | V | ||
I OL=2 mA, push-pull pins | VOL1 | 0.2 | V | |||
DVDD 输出电压 |
LPASS=0, AVDD=3.6~5.0V, Load< 40 MA | VDVDD | 2.8 | 3.1 | 3.3 | V |
LPASS=0, AVDD=2.8~3.6, Load<40mA | VDVDDL | AVDD-0.2 | V | |||
输入电压 |
All Input Pins | VIH1 | 0.6 VDD | 0.5 VDD | V | |
All Input Pins | VIL1 | 0.33 VDD | 0.25 VDD | V | ||
输出电流 |
IO pins, VOL=0.5V, VOH=VDD-0.5V |
IOL1 IOH1 |
8 |
-8 | mA | |
AMP pins, 8-ohm speaker connected |
IOL2 IOH2 |
-250 +250 |
mA | |||
IO pulled high input at 4.5V | IPH | -0.04 | mA | |||
IO pulled high input at 3.6V | IPH | -0.03 | mA | |||
MBIAS 输出电流 |
AVDD=4.5V | Imbo | 3 | mA | ||
MBIAS 输出电压 |
2.3 | V |
参数 | 测试条件 | 符号 | 最小值 | 标准值 | 最大值 | 单位 |
IRC Frequency | VDD=3.6V | Firc | 14 | 16 | 18 | MHz |
External RC Frequency |
DVDD=3.6V, ROSC=2K OHMS | Frc | 14 | 16 | 32 | MHz |
Operating Frequency |
LPASS=1, AVDD=DVDD=3.6V | 16 | 32 | MHz | ||
LPASS=0 DVDD=2.6V | 16 | 24 | MHz | |||
Sample Rate | LPASS=0, Recording | FOSC/2048 | Hz | |||
Sample Rate | LPASS=0, Playing | FOSC/2048 | FOSC/1024 | Hz | ||
Speech Signal SNR |
VDD=4.5V | ADCSNR | 40 | DB | ||
Speech Dynamic Range |
VDD=3.0V | ADCSNDR | 60 | DB | ||
ADC POWER NOISE REJECT |
VDD=3.0V | PSRRmb | 50 | DB | ||
MBIAS Power Noise Reject Ratio |
VDD=3.3V,load=2.0 mA | PSRRmb | 40 | DB |