- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄169672 > CM108 (C-Media Electronics Inc.) USB Audio I/O Controller PDF資料下載
參數(shù)資料
| 型號： | CM108 |
| 廠商： | C-Media Electronics Inc. |
| 英文描述： | USB Audio I/O Controller |
| 中文描述： | USB音頻I / O控制器 |
| 文件頁數(shù)： | 6/29頁 |
| 文件大?。?/td> | 514K |
| 代理商： | CM108 |
第1頁第2頁第3頁第4頁第5頁當(dāng)前第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁
CM108
Integration Dual DAC, Earphone Driver, ADC,
Microphone Booster, PLL, Regulator, and USB Transceiver
Date: Nov/01/2004
Version: 1.5
- 13 -
7. FUNCTION DESCRIPTIONS
7.1 USB Interface
CM108 integrates USB transceiver, PLL, and regulator. So only a few passive
components are necessary for the USB interface connection. Default USB descriptors are
embedded in CM108; therefore no additional design effort is needed for USB operation. PID
will be changed with the MODE pin setting, so different setting will have different PID. For
customized product, customer can attach a 93C46 EEPROM to override the embedded VID,
PID and provide addition serial number for each set. CM108 will automatically detect the
93C46 existence and performs the overwrite function during power up.
7.1.1 Device Descriptor
Offset
Field
Size
Value
(Hex)
Description
0
bLength
1
12
Total 18 Bytes
1
bDescriptorType
1
01
Device Descriptor
2
bcdUSB
2
0110
USB 1.1 compliant.
4
bDeviceClass
1
00
5
bDeviceSubClass
1
00
6
bDeviceProtocol
1
00
7
bMaxPacketSize0
1
40
Endpoint zero Size = 64 bytes
8
idVendor
2
0d8c
Vendor ID
10
idProduct
2
0008 ~
000F
Product ID
Programmable by MSEL and MODE pin
12
bcdDevice
2
0100
Device compliant to the Audio Device
Class specification version 1.00
14
iManufacturer
1
01
Index of string descriptor describing
manufacturer
15
iProduct
1
02
Index of string descriptor describing
product
16
iSerialNumber
1
03
Index of string descriptor describing the
device’s serial number
17
bNumConfigurations
1
01
Configurations number = 1
Note: VID, PID, and serial number can be overridden by external EEPROM content
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CM109 | USB I/O Controller |
| CM1408-08DE | 8 FUNCTIONS, 2.5 V, DATA LINE FILTER |
| CM1482-02DE | 2 FUNCTIONS, DATA LINE FILTER |
| CM1608F100KE | 1 ELEMENT, 10 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
| CM1608F100MT | 1 ELEMENT, 10 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CM1080 | 制造商:CML 制造商全稱:Chicago Miniature Lamp,inc 功能描述:S-8 Double Contact Bayonet Base |
| CM1084 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5.0 AMP POSITIVE VOLTAGE REGULATOR |
| CM1084-000 | 制造商:TE Connectivity 功能描述:Heat Shrink Molded Boot 制造商:TE Connectivity 功能描述:222A074-12-0 - Bulk |
| CM1084CN220 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5.0 AMP POSITIVE VOLTAGE REGULATOR |
| CM1084CN252 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5.0 AMP POSITIVE VOLTAGE REGULATOR |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。
