參數(shù)資料
型號： STLC7549
廠商： 意法半導(dǎo)體
元件分類： Codec
英文描述： Stereo Audio/MODEM/Telephony Codec(立體聲音頻/調(diào)制解調(diào)器/電話編解碼器)
中文描述： 立體聲音頻/調(diào)制解調(diào)器/語音編解碼器（立體聲音頻/調(diào)制解調(diào)器/電話編解碼器）
文件頁數(shù)： 31/35頁
文件大?。?/td> 335K
代理商： STLC7549
REGISTERDESCRIPTION
(continued)
Index Register13 :
Modem Codec #1
InputControl
4
7
6
5
3
2
1
0
0
0
0
0
0
0
0
M
M1G0 : Reset value : 0.
Gain select for mono codec #1 input
amplifier (G4)(see Table 7).
Table 7 :
Codec#1 AmplifierGain
M1G0
0
1
Amplifier Gain (G4)
+0dB
+6dB
Note :
If single-ended hardware, M1G0 must be set to 1 to +0dB
gain.
Index Register14 :
Mono Codec #1
Output Control
4
3
7
6
5
2
1
0
0
0
0
0
0
M
-
-
-M1TX1 : Reset value : 0. Setting this bit to 1 will
enable the mono codec #1 DAC output
to the TP1TX1+/TP1TX1- output Pins.
If set to 0, the pins are muted.
-M1TX2 : Reset value : 0. Setting this bit to 1 will
enable the mono codec #1 DAC output
tothe TP1TX2outputPin. Ifset to0, the
pin is muted.
M1TXG : Reset value : 0. Setting this bit to 1 will
place a -6dB attenuator in the output
DACpath. Setting thisbit to 0 willresult
in a gainpath of 0dB (A2).
Table 8 :
Transmit Gain(A2)
M1TXG
0
1
Transmit Amplifier Gain (A2)
+0dB
-6dB
Index Register15 :
Mono Codec #2
InputControl
4
7
6
5
3
2
1
0
T
T
-
-
-
-
H
H
TP2RXG1,
TP2RXG0
: Reset value : 00.
TP2Rxgain select. Thesetwo bits
determine the gain of the input
amplifier of theTP2RXinputPin of
mono codec #2. The Table 9
illustrates the bit definitions of the
four possible gain settings. This
amplifier is only applied to the
TP2RXinput of mono codec #2.
: Reset value : 00.
HandRxgainselect.Thesetwobits
determine the gain of the input
amplifier of the HandRx input Pin
of mono codec #2. The Table 9
illustrates the bit definitions of the
four possible gain settings. This
amplifier is only applied to the
HandRx input of mono codec #2.
: Reset value : 0.
Setting this bit to 1 will enable the
HandRx input into the ADC
summer of the mono codec #2.
Setting the bit to 0 will mute the
signal.
: Reset value : 0.
Setting this bit to 1 will enable the
TP2Rxinputinto theADCsummer
of the mono codec #2. Settingthe
bit to 0 will mute the signal.
: Reset value : 0.
Setting this bit to 1 will enable the
internally amplified microphone
right signal into the ADC summer
of the mono codec #2. Settingthe
bit to 0 will mute the signal.
: Reset value : 0.
Setting this bit to 1 will enable the
internallyamplifiedmicrophoneleft
signal into theADC summer of the
monocodec#2. Settingthebit to 0
will mute the signal.
HRXG1,
HRXG0
-M2HRX
-M2TP2
-M2MICR
-M2MICL
Table 9 :
TP2Rxand HANDRx Input Gain (G3)
Bit Code
Gain (G3)
-4dB
0dB
+4dB
+8dB
0
0
1
1
0
1
0
1
STLC7549
31/35
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參數(shù)描述
STLC7550 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW POWER LOW VOLTAGE ANALOG FRONT END
STLC7550TQF7 功能描述:電信線路管理 IC Lo-V Analg Front-End RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
STLC7550TQF7TR 功能描述:電信線路管理 IC Lo-V Analg Front-End RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
STLC7550TQFP 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW POWER LOW VOLTAGE ANALOG FRONT END
STLC75C53TQFP 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MODEM
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