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參數(shù)資料
| 型號： | XE3005I033TRLF |
| 廠商： | Semtech |
| 文件頁數(shù)： | 9/37頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CODEC LOW PWR 16BIT 20-TSSOP |
| 標準包裝： | 1 |
| 類型： | 音頻編解碼器 |
| 數(shù)據(jù)接口： | 串行 |
| 分辨率（位）： | 16 b |
| ADC / DAC 數(shù)量： | 1 / 1 |
| 三角積分調(diào)變： | 是 |
| S/N 比，標準 ADC / DAC (db)： | 78 / 78 |
| 動態(tài)范圍，標準 ADC / DAC (db)： | 78 / 78 |
| 電壓 - 電源，模擬： | 1.8 V ~ 3.6 V |
| 電壓 - 電源，數(shù)字： | 1.8 V ~ 3.6 V |
| 工作溫度： | -20°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-TSSOP |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 585 (CN2011-ZH PDF) |
| 其它名稱： | XE3005I033DKR |
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Semtech 2005
www.semtech.com
17
XE3005/XE3006
ss
sck
mosi
request (write to address A(4:0))
write data D(7:0) to address A(4:0)
1
0
A4
A2
A1
A0
A3
msb
lsb
Figure 18: SPI signal timing in write mode
4
SANDMAN FUNCTION (XE3006)
The Sandman function analyzes the audio signals in the ADC and DAC. Its output signals indicate whether an audio
signal is present in the ADC or DAC or if the processed signal is just noise. The threshold or reference value between
noise and audio signal as well as the minimum duration of an audio signal is user-programmable through the SPI
interface. If the XE3006 CODEC is used in a system that includes a microcontroller, a DSP or an RF link, the outputs of
the Sandman Interface can be used to bring these devices into standby or sleep mode whenever no audio signal is
being processed. In this way, the Sandman function contributes to significant additional power savings on the system
level outside the XE3006 chip.
The Sandman Interface consists of 2 digital outputs:
The SMAD detects whether the ADC processes an audio signal. The calculation is made with the digital data leaving
the ADC.
The SMDA detects whether an audio signal is processed by the DAC. The calculation is made with the digital data
entering through the Audio Interface.
The Sandman Interface is implemented for the ADC and for the DAC in an identical way. It works with a set of 4 user-
defined parameters: off time, on-time, ADC-reference and DAC-reference. The on time and the off time are the same for
ADC and DAC. However, the reference values for the ADC and the DAC are adjusted separately, as indicated in the
table below.
Input parameters
Register
Sandman ADC
Sandman DAC
Off-time1(7:0)
L
X
Off-time2(15:8)
M
X
On-time(7:0)
N
X
ADC_reference(7:0)
O
X
-
DAC_reference(7:0)
P
-
X
The Sandman Interface (for the ADC as well as for the DAC) is configured with three parameters:
Reference (7:0): Absolute value under which the signal is considered noise and above which the signal is
considered to be an audio signal. The Sandman function is disabled (SMAD or SMDA at logic 1) if this parameter
is zero. The ADC and the DAC have separate Reference values.
Off-time (15:0): Time until power down. The number of sequential samples that have to be lower than the
Reference for the power down signal to become active. The Sandman function is disabled (SMAD or SMDA at
logic 1) if this parameter is zero. The ADC and DAC have one common Off-time value.
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| XE3005I064TRLF | 功能描述:IC CODEC LOW PWR 16BIT 20-UCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標準包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標準 ADC / DAC (db):81.5 / 88 動態(tài)范圍，標準 ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
| XE3006 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Low-Power Audio CODEC |
| XE3006I019 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Low-Power Audio CODEC |
| XE30X | 制造商:EnerSys 功能描述:LEAD ACID BATTERY, 12V, 30AH; Battery Size Code:-; Battery Capacity:28Ah; Battery Voltage:12V; Battery Technology:Pure Lead; External Height:125mm; External Width:175mm; External Depth:165.9mm; Weight:10.2kg; Depth:6.63"; Width:6.99";RoHS Compliant: NA |
| XE3314B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Low-Cost, Embeddable 33,600 BPS Modem Module |
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