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PDF CM119A Data sheet ( Hoja de datos )
| Número de pieza | CM119A | |
| Descripción | High Integration/Low Cost USB Audio Controller | |
| Fabricantes | C-MEDIA | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CM119A (archivo pdf) en la parte inferior de esta página. Total 33 Páginas | ||
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CM119A
High Integration/Low Cost USB Audio Controller
DESCRIPTION
CM119A is a highly integrated single chip USB audio
controller specifically for VoIP (Voice over internet
protocol) application. All essential analog modules
are embedded in CM119A, including dual DAC and
earphone driver, ADC, microphone booster, PLL,
regulator, and USB transceiver. It’s also support
8GPIO pins and buzzer output pin for VoIP
application. In addition, audio adjustment can be
easily controlled via specific HID compliant volume
control pins. Many features are programmable with
jumper pins or external EEPROM. Vender can
customize unique USB VID / PID / Product_String /
Manufacture_String to EEPROM for VoIP software
authentication. Moreover, individual unique phone
number for each device is possible via serial
number stored in external EEPROM.
FEATURES
Compliant with USB 2.0 Full Speed Operation
Compliant with USB Audio Device class
specification v1.0
Supports USB Suspend/Resume Mode and remote
Wakeup with Volume Control pins
Single 12MHz Crystal input with on-chip PLL and
embedded USB transceiver
Jumper Pin for Speaker Mode (Playback Only) or
Headset Mode (Playback + Recording)
For Headset Mode, USB audio function topology
has 2 Input Terminals, 2 Output Terminals, 1
Mixer Unit, 1 Selector Unit, and 3 Feature Units
Jumper Pin for Operation System Mixer Unit
Enable/Disable under Headset Mode
BLOCK DIAGRAM
REGV
PWRSEL
MODE
PDSW SEL pins
VOLUP
VOLDN
MUTER LEDO MCU
MUTEP LEDR I/F GPIO BUZZ SPDIFO
CS
SK
DW
DR
USBDP
USBDM
XI
XO 12 MHz
5- > 3. 3
regulator
USB interrupt
processing with4
byte FIFO
3.3V
EEPROM
interface
USB
TRX
USB
interface
4 byte
FIFO
USB control
processing
ISO out
processing
( with x2 mod)
12. 288/11. 2896 MHz
with adjustment
48 MHz
PLL1
PLL2
ISO in
processing
PLL3 12.288/
11. 2896MHz
TEST
interface logics
ROM
300 x 16 SRAM
High-Pass Filter
VREF
(2.25V)
bandgap
reset power on
reset
16 bit
DAC
sync by
VPR_ CLK
0 ~-45dB
38 steps
voltage linear
+
Vref
+
Vref
+
Vref
16 bit
DAC
16 bit Sigma-
Delta ADC
Vref +
0 ~-45dB
38 steps
sync by voltage linear
VPL_ CLK
+ Vref
+
Vref
+22.5~ - 0 dB
16 steps
+ Vref
4.5 V( drive typ4mA)
+22. 5 ~ 0 dB
16 steps
BOOST
+20 dB boost enable
LOR
LOBS
LOL
MICIN
VREF
VBIAS
www.cmedia.com.tw
Copyright © C-Media Electronics Inc.
Rev. 2.1 ︱ Page 1/33
1 page  
CM119A
High Integration/Low Cost USB Audio Controller
3 Pin/Signal Description
3.1 Pin Assignment by Pin Number
Pin # Signal Name
1 SPDIFO
2 DW
3 DR
4 SK
5 CS
6 MUTER
7 PWRSEL
8 XI
9 XO
10 MODE
11 GPIO2
12 LEDO
Pin # Signal Name
13 GPIO3
14 DVSS1
15 GPIO4
16 GPIO5
17 GPIO6
18 MUTEP
19 BUZZ
20 GPIO7
21 LEDR
22 GPIO8
23 TEST
24 AVSS1
Pin # Signal Name
25 VBIAS
26 VREF
27 MICIN
28 N.C.
29 AVDD1
30 LOL
31 LOBS
32 LOR
33 AVSS2
34 AVDD2
35 DVDD
36 DVSS2
Pin # Signal Name
37 REGV
38 MSEL
39 VOLUP
40 PDSW
41 USBDP
42 USBDM
43 GPIO1
44 SCLK
45 MINT
46 SDAT
47 MCLK
48 VOLDN
3.2 Pin-Out Diagram
REGV
MSEL
VOLUP
PDSW
USBDP
USBDM
GPIO1
SCLK
MINT
SDAT
MCLK
VOLDN
37
38
39
40
41
42
43
44
45
46
47
48
CM119A
LQFP-48
24 AVSS1
23 TEST
22 GPIO8
21 LEDR
20 GPIO7
19 BUZZ
18 MUTEP
17 GPIO6
16 GPIO5
15 GPIO4
14 DVSS1
13 GPIO3
www.cmedia.com.tw
Copyright © C-Media Electronics Inc.
Pin Assignments ( Top View)
Rev. 2.1 ︱ Page 5/33
5 Page 
CM119A
High Integration/Low Cost USB Audio Controller
7.1.2 Configuration Descriptor
Offset
Field
0 bLength
1 bDescriptorType
2 wTotalLength
Size
1
1
2
4 bNumInterfaces
1
5 bConfigurationValue 1
6 iConfiguration
1
7 bmAttributes
1
8 bMaxPower
2
Value
(Hex)
09
02
Description
Total 9 Bytes
Configuration Descriptor
Total length of data returned for this configuration
Programmable by MSEL and MODE pin
04 or 03
01
00
A0 or E0
32 or FA
Number of interfaces supported by this configuration
(Decided by Speaker Mode and Head Set mode):
0: control interface
1: ISO-OUT interface
2: ISO-IN interface (Option)
3: INT-IN(HID) interface
Programmable by PWRSEL
Maximum power consumption of the USB
Programmable by MODE and PWRSEL
www.cmedia.com.tw
Copyright © C-Media Electronics Inc.
Rev. 2.1 ︱ Page 11/33
11 Page | ||
| Páginas | Total 33 Páginas | |
| PDF Descargar | [ Datasheet CM119A.PDF ] | |
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