- 您现在的位置：买卖IC网 > PDF目录1851 > MC34827A1EPR2 (Freescale Semiconductor)IC USB POWER MANAGER 20-QFN PDF资料下载
参数资料
| 型号： | MC34827A1EPR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 25/57页 |
| 文件大小： | 0K |
| 描述： | IC USB POWER MANAGER 20-QFN |
| 标准包装： | 1 |
| 应用： | OR 控制器，UART/USB 数据，音频管理 |
| 电流 - 电源： | 9µA |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-UFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN 裸露焊盘（3x3） |
| 包装： | 标准包装 |
| 其它名称： | MC34827A1EPR2DKR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页当前第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页
FUNCTIONAL DEVICE OPERATION
OPERATION AFTER IDENTIFICATION
The period of ADC conversion is determined by the Device
Wake-up bits in the Timing Set 1 register. All other behaviors
of Audio Type 1 and other accessories will not be affected by
the RAW DATA bit.
POWER SAVE MODE (AUTOPSAVE BIT)
The 34827 supports the Power Save mode when the
accessory is Audio Type 1 or TTY to reduce the power
consumption. The default behavior of 34827 is to enter the
Power Save mode automatically if no signal activity is
detected within a programmable time which is controlled by
the Activity Idle Detection Time bits in the Time Delay
register. The default delay time is 10s. Once the signal
activity is detected, the 34827 will quit the Power Save mode
and enter the Active mode immediately. In the Power Save
mode, the SPK_R/SPK_L to DP/DM switches and the VBUS
to MIC switch all keep on. Remote control key pressing in
Power Save mode can be responded as in the Active mode.
If the AutoPSAVE bit in FSL Control register is set to ‘0’,
the 34827 will not enter Power Save mode automatically.
Under this condition, the baseband can control the mode
transition manually by writing the PSAVE bit when the
accessory is Audio Type 1 or TTY. If the PSAVE is set to ‘0’,
the 34827 keeps in Active mode; if the PSAVE is set to ‘1’,
the 34827 keeps in Power Save mode even if the audio signal
is applied at SPK_R and SPK_L pins.
If the Manual S/W is set to ‘0’ for Audio Type 1 or TTY, the
34827 has the same mode transition behavior as when the
Manual S/W is in default value ‘1’.
NORMAL OPERATION SETTING OF THE
CONTROL BITS
After the VDD and VDDIO are powered up, the 34827 is
normally configured to turn on the switches automatically
after the attached accessory is identified. Thus the
INT_MASK bit must be set to ‘0’, the WAIT bit is normally set
to ‘1’, the Manual S/W bit is set to ‘1’, the RAW Data bit is set
to ‘1’ and the Switch_Open bit is set to ‘1’. This is the normal
setting of these control bits for the normal operation.
ANALOG AND DIGITAL SWITCHES
These switches are controlled by the identification result
when the Manual S/W = 1 and by the Manual S/W registers
when the Manual S/W = 0 in Active mode. The Switch_Open
bit overrides the switch configuration. When the
Switch_Open bit is 0, all switches, including the power
MOSFET, are turned off.
The switches for the SPK_L and SPK_R are capable of
passing signals of ± 1.5 V, referencing to GND pin voltage.
The SPK_L and SPK_R pins are pulled down to ground via a
When the switches are configured automatically by the
identification result, the configuration of the switches vs. the
When detachment of an accessory is detected, the 34827
will return to the Standby mode. In the Standby mode, no
matter Manual S/W = 1 or Manual S/W = 0, all signal switches
and the power MOSFET are off in the Standby mode except
for the OUT-to-ground FET SW10. The OUT-to-ground FET
is turned on whenever the FET_ON bit is ‘0’. The ISET and
JIG pins output high-impedance and BOOT pin outputs low
logic voltage in the Standby mode
MC34827
Analog Integrated Circuit Device Data
Freescale Semiconductor
25
相关PDF资料 |
PDF描述 |
|---|---|
| MC34921AER2 | IC MOTOR DRVR PWM DC DUAL 64LQFP |
| MC34923EGR2 | IC PWM MOTOR DRIVER FULL 24-SOIC |
| MC35XS3400DPNAR2 | IC SWITCH HIGH SIDE QUAD 24QFN |
| MC3PHACVPE | IC MOTOR CONTROLLER 28-DIP |
| MC44604PG | IC REG CTRLR FLYBACK PWM 16-DIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC34827A2EPR2 | 功能描述:USB 接口集成电路 MINI USB IC RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| MC34829 | 制造商:SPC Multicomp 功能描述:CONNECTOR FPC SMD 0.5MM 20WAY |
| MC3482BL | 制造商:Motorola Inc 功能描述: |
| MC34831 | 制造商:SPC Multicomp 功能描述:HEADER VERTICAL SMT 7WAY 制造商:SPC Multicomp 功能描述:HEADER, VERTICAL, SMT, 7WAY 制造商:SPC Multicomp 功能描述:WIRE-BOARD CONNECTOR HEADER 7POS, 1.25MM; Connector Type:Wire to Board; Series:1251S; Contact Termination:Surface Mount Vertical; Gender:Header; No. of Contacts:7; No. of Rows:1; Pitch Spacing:1.25mm; Contact Plating:Tin ;RoHS Compliant: Yes |
| MC34833 | 制造商:SPC Multicomp 功能描述:HEADER VERTICAL SMT 11WAY |
发布紧急采购，3分钟左右您将得到回复。