參數(shù)資料
型號(hào)： STLC7549
廠商： 意法半導(dǎo)體
元件分類(lèi)： Codec
英文描述： Stereo Audio/MODEM/Telephony Codec(立體聲音頻/調(diào)制解調(diào)器/電話(huà)編解碼器)
中文描述： 立體聲音頻/調(diào)制解調(diào)器/語(yǔ)音編解碼器（立體聲音頻/調(diào)制解調(diào)器/電話(huà)編解碼器）
文件頁(yè)數(shù)： 19/35頁(yè)
文件大?。?/td> 335K
代理商： STLC7549
ELECTRICALSPECIFICATION
(continued)
AUDIO
AV
DD
= 5V,DV
DD
= 3.3V; Input levels : Logic 0 = 0V, Logic1 = DV
DD
;
1kHzinput sinewave ; Conversionrate = 44.1kHz;
Measurementbandwidthis 20Hz to 20kHz, 16-bit linear coding for audio, microphone inputs.
Gainsetting andAttenuation(0dB) ; 0dBr= 1V
RMS
(sinewave) ; Load impedance 10k
, 20pF ;
Unless otherwise specified.
Analog Output Characteristics
Symbol
DAR
DAC Resolution
DNL
DAC Differential Nonlinearity (see Note 1)
SNDR
Signal / Noise + Distortion at -10dBr
DR
Dynamic Range (seeNote 2)
SID
Signal to IntermodulationDistortion
IcI
Interchannel Isolation
IcGM
Interchannel Gain Mismatch
PAS
DAC Programmable Attenuation Span
ASS
DAC Attenuation Step Size
FSO
Full Scale Output Voltage
R
L
Load Resistance
C
L
Load Capacitance
R
OUT
Output Resistance
MAtt
Mute Attenuation (0dB gain)
OBE
Total Out-of-band Energy (see Note1)
Parameter
Min.
16
-0.9
Typ.
Max.
Unit
Bits
LSB
dB
dB
dB
dB
dB
dB
dB
V
PP
k
pF
dB
dBr
+0.9
75
85
85
Line Out
Line Out
85
-0.5
42
2.5
2.8
10
0.1
45
3
2.9
+0.5
48
3.5
3.0
20
20
85
Fs/2 to 100kHz
-45
Notes :
1. This specificationis guaranteed by characterization, not productiontesting.
2. DR measured over the full bandwidth 0Hz to FSA/2 with-20dBr signal extrapoledto fullscale.
3. The gain step size error is the deviation of a gain or attenuationstep from a straight line passing through the no-gain/attenuation
value and the ideal full-gain/attenuationvalue.
7
Analog Input Characteristics
Symbol
ADR
ADC Resolution
DNL
ADC Differential Nonlinearity (see Note 1)
SID
Signal to IntermodulationDistortion
IcI
Interchannel Isolation (f = 1kHz, V
input
= 200mV
PP
)
IcGM
Interchannel Gain Mismatch
Parameter
Min.
16
-0.9
Typ.
Max.
Unit
Bits
LSB
dB
dB
dB
dB
dB
dB
dB
dB
LSB
LSB
V
PP
k
k
pF
dB
dB
dB
+0.9
85
85
-0.5
-0.5
28
55.5
Line Inputs
Microphone Inputs
Line Inputs
Microphone Inputs
Line Inputs
Microphone Inputs
Line Inputs
+0.5
+0.5
32
59.5
0.5
0.5
100
1000
3.0
PIGS
Programmable Input GainSpan
30
57.5
GSEr
Gain Step Size Error (see Note 3)
OFFr
ADC Offset Error
(microphone pre-amplifier & G2 at maximum gain) Microphone Inputs
Full Scale Input Voltage
Input Resistance (see Note 1)
10
600
2.9
FSI
R
IN
Line and Microphone Inputs
2.8
100
10
Line Inputs
Microphone Inputs
C
IN
SNDR
Input Capacitance (see Note 1)
Signal / Noise + Distortion at -6dBr ; 1kHz
15
ADC Audio
ADC Micro
79
70
85
DR
Dynamic Range (seeNote 2)
7
STLC7549
19/35
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STLC7550TQF7TR 功能描述:電信線(xiàn)路管理 IC Lo-V Analg Front-End RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
STLC7550TQFP 制造商:STMICROELECTRONICS 制造商全稱(chēng):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(chēng):未知廠家 功能描述:MODEM
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