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参数资料
| 型号： | IDTNW6005AS |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 19/20页 |
| 文件大小： | 0K |
| 描述： | IC CALLER ID DECODER 20-SOIC |
| 标准包装： | 37 |
| 类型： | 来电身份解码器 |
| 应用： | 传真，调制解调器，寻呼机 |
| 电压 - 电源，模拟： | 2.5 V ~ 3.8 V |
| 电压 - 电源，数字： | 2.5 V ~ 3.8 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 管件 |
| 其它名称： | NW6005AS |
8
INDUSTRIAL TEMPERATURE RANGE
NW6005 ENHANCED TYPE II CALLER ID DECODER
OTHER FUNCTIONS
POWER-DOWN MODE
The device provides the power-down feature to reduce the power
consumption. Power-down can be activated by setting Control Bits 0-2
to ‘100’. Note that momentary transition of CB0-2 into the power-down
code won’t activate power-down but will reset the device.
In this mode, both input OP amps, reference voltage and the
oscillator are non functional. When the device is in power-down, DATA,
DR/STD, CD are high; EST and ST/GT are low.
An intelligent Power-down feature is implemented to futher reduce
the operating current. When FSK is selected, DT-AS detector is
powered down. When DT-AS is selected, FSK demodulator is
powered down. The Tip/Ring and Hybrid input OP amps are not
affected in the intelligent Power-down.
CRYSTAL OSCILLATOR
A 3.579545 MHz crystal oscillator or other external clock source is
required for NW6005. The crystal can be directly connected between
OSCIN and OSCOUT pins without any external component. If an
external clock source is used, OSCIN pin should be driven by the
clock source and OSCOUT pin is left floating or is used to drive other
devices. Fig. 8 shows some applications.
to the next device
(b) Common Crystal Connection of Several Devices
Sharing One Timing Source
(a) Connection of One Device with Crystal Oscillator
NW6005
OSCIN
OSCOUT
3.579545MHz
NW6005
OSCIN
OSCOUT
NW6005
OSCIN
OSCOUT
NW6005
OSCIN
OSCOUT
3.579545MHz
Figure 8. Applicaiton of Clock Driven Circuit
APPLICATION NOTE
CONTROL BITS PROGRAMMING
Functionality of the NW6005 can be selected by coding CB0-CB2,
as shown in Table 2.
Functionality Group
CB0
CB1
CB2
FSK Demodulation Mode 0
0
1
FSK Demodulation Mode 1
1
Hybrid DT-AS Detection
1/0
1
0
Tip/Ring DT-AS Detection
1/0
0
1
Power Down
1
0
Factory Test Only
0
Table 2. Control Bits Programming
HYBRID CONNECTION
To optimize the device’s talkdown and talkoff performance, Hybrid
connection is recommended. There are two Op Amps in NW6005
which bring convenience for Hybrid connection. When connected to
the Hybrid Op Amp, the Hybrid circuit will attenuate the speech signal
at least 9 dB from the microphone to the speaker, which leads a much
better performance of near-end talkdown and talkoff.
It is highly recommended to demodulate the FSK signal using the
Tip/Ring OP Amp and to detect the CAS signal using the Hybrid OP
Amp. This implementation brings not only optimized talkdown and
talkoff performance, but also the convenience to adjust FSK and CAS
sensitivity separately.
GAIN SETTING
Ideally, the gain of the two Op Amps would be set to 0 dB. But in
real applications, the gain setting should be determined by industry
standards as well as by customer requirements. The circuit and
calculation method of gain setting is illustrated in Figs. 3 and 4. For
Hybrid connection, the single-ended solution (Fig. 4) is often selected.
Typically, the CAS sensitivity should be lower than the FSK
sensitivity in order to prevent missing the FSK signal while the CAS
signal is detected. Therefore, it is suggested to set the gain of the Op
Amp for FSK demodulation 3 dB higher than that of the Op Amp for
CAS detection.
THE DIFFERENCE BETWEEN FSK MODE 0 AND MODE1
In FSK mode 0, the FSK serial bit stream is output to the DATA pin
directly. DCLK and DR pins are unused. The microcontroller reads out
the data by the serial data interface which is implemented by software
programming. The flexibility of using software improves the immunity
to interference.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IDTNW6005ASG | 功能描述:IC CALLER ID DECODER 20SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 编码器，解码器，转换器 系列:- 产品变化通告:Development Systems Discontinuation 26/Apr/2011 标准包装:1 系列:- 类型:编码器 应用:DVB-S.2 系统 电压 - 电源，模拟:- 电压 - 电源，数字:- 安装类型:- 封装/外壳:模块 供应商设备封装:模块 包装:散装 其它名称:Q4645799 |
| IDTNW6006AS | 功能描述:IC CALLER ID DECODER 20-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 编码器，解码器，转换器 系列:- 产品变化通告:Development Systems Discontinuation 26/Apr/2011 标准包装:1 系列:- 类型:编码器 应用:DVB-S.2 系统 电压 - 电源，模拟:- 电压 - 电源，数字:- 安装类型:- 封装/外壳:模块 供应商设备封装:模块 包装:散装 其它名称:Q4645799 |
| IDTP62000NLG | 制造商:Integrated Device Technology Inc 功能描述:IC PWM CTRLR 2/3/4-PHASE 64QFN |
| IDTP62000NLG8 | 制造商:Integrated Device Technology Inc 功能描述:IC PWM CTRLR 2/3/4-PHASE 64QFN |
| IDTP63131-00NDGI | 制造商:Integrated Device Technology Inc 功能描述:IC BUCK CTRLR MULTI-PH 40QFN |
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