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参数资料
| 型号： | W91030BSG |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | 无绳电话/电话 |
| 英文描述： | TELEPHONE CALLING NO IDENT CKT, PDSO24 |
| 封装： | 300MIL, ROHS COMPLIANT, PLASTIC, SOP-24 |
| 文件页数： | 4/32页 |
| 文件大小： | 245K |
| 代理商： | W91030BSG |
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W91030B
Publication Release Date: Sep. 27, 2005
- 12 -
Revision A2
Demodulated
internal
bit stream
start
0
b0b1b2b3b4b5b6b7
1
0
stop
start
DATA
b0 b1 b2 b3 b4 b5 b6 b7
DCLK
FDRN
1/fDCLK1
b7
b6
b5
1
b0
b7
b6
t DDS
t DDH
Nth byte data
(N + 1)th byte data
(N - 1)th byte data
Nth byte data
t RL
Note 2
Note 1
1. FDRN cleared to high by DCLK.
2. FDRN not cleared, low for maximum time (1/2 bit width).
Notes:
Figure 7-8. Serial Data Interface Timing of FSK Demodulation in Mode 1
7.5
Other Functions
Interrupt
The interrupt INTN is an open drain output and is used to interrupt the microcontroller. Either RNGON
low, FDRN low or ALGO high will set INTN low and will remain low until all of these three pins return
to an inactive state. The microcontroller must read these pins to know what kind of interrupt occurred
and to make the correct interrupt response.
When the system is powered on, there is no charge on the capacitors. The voltage on the RNGRC pin
is low and RNGON will be low. Also the voltage on the ALGRC pin is high and ALGO will be high if the
SLEEP pin is low. This will cause an interrupt upon power up which will not be cleared until both
capacitors are charged. The microcontroller should therefore ignore the interrupt from these source
until the capacitors are charged up. The microcontroller can examine the RNGON and ALGO pins and
wait until these signals are inactive during a power on interrupt.
It is possible to clear the ALGO pin and its interrupt quickly by setting the SLEEP pin high. In the sleep
mode, the ALGO pin is forced low and the charge switch in Figure 7-4 will turn on, forcing the
capacitor to charge up rapidly.
Sleep Mode
The W91030B can go into a sleep mode by setting SLEEP high, resulting in reduced power
consumption. In this mode, the gain control op-amp, oscillator and all internal circuits, except the ring
detector are disabled. The RNGDI, RNGRC and RNGON pins are not affected, so the device can still
react to call arrival indicators and activate an interrupt to wake up the microcontroller. The sleep mode
can be disabled by the microcontroller.
相关PDF资料 |
PDF描述 |
|---|---|
| W91212S | TELEPHONE DIALER CKT, PDSO20 |
| W91312AS | TELEPHONE DIALER CKT, PDSO20 |
| W91314AS | TELEPHONE DIALER CKT, PDSO20 |
| W91820AN/824AN | TELEPHONE DIALER CKT, PDIP22 |
| W91820N/824N | TELEPHONE DIALER CKT, PDIP20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| W91031 | 制造商:WINBOND 制造商全称:Winbond 功能描述:LOW POWER CMOS INTERGRATED CIRCUIT |
| W91031S | 制造商:WINBOND 制造商全称:Winbond 功能描述:Calling Line Identifier |
| W91031SG | 功能描述:IC CALL LINE IDENT 24-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 电信 系列:- 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 06/Feb/2012 标准包装:750 系列:* |
| W91031SG (SA5825) TR | 制造商:Nuvoton Technology Corp 功能描述:FSK DECORDER WITH CALL ON WAIT |
| W91031SG T&R | 制造商:Nuvoton Technology Corp 功能描述:IC CALL LINE IDENT 24-SOIC |
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