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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： | 15/32页 |
| 文件大小： | 245K |
| 代理商： | W91030BSG |
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W91030B
Publication Release Date: Sep. 27, 2005
- 22 -
Revision A2
9.
APPLICATION INFORMATION
9.1
Application Circuit
Analog Interface
The application circuit of the W91030B in Figure 9-1 shows the device being used within a typical CPE
system. Note that only the circuit between the W91030B and the line interface is shown. The gain
control op-amp is set to unity gain to allow the electrical characteristics to be met in this application
circuit. It should also be noted that if a glitch with sufficient amplitude appears on the tip and ring
interface, this will be detected as a ringing input by this circuit.
Figure 9-1 Application Circuit
Another application circuit for the W91030B, which provides common mode rejection of ringing circuit
signals, is shown in Figure 9-2. When the AC voltage between the tip and ring is greater than the
zener diode breakdown voltage, the photo-coupler LED will turn on, driving RNGDI high and thus
detecting a ringing signal. Note however in this case, a glitch on the tip and ring interface is not able to
turn on the photo-coupler and therefore will not be detected as a ringing signal.
INP
INN
GCFB
VREF
CAP
RNGDI
RNGON
MODE
OSCI
OSCO
VSS
RNGRC
VDD
ALGRC
ALGR
ALGO
INTN
FCDN
FDRN
DATA
DCLK
FSKE
SLEEP/
RESET
TEST
+5V
34K
430K
22nF
Tip/A
+5V
430K
22nF
Ring/B
34K
464K
60K4
+5V
150K
0.22uF
200K
300K
0.1uF
+5V
0.1uF
R2
R1
+5V
53K6
111
FSK 3-wire interface Mode 0 selected.
Resistor must have 1% tolerance.
Resistor may have 5% tolerance.
Crystal is 3.579545MHz with 0.1% frequency tolerance.
470K
0.1uF
10K
+5V
R1, R2 must calculated according to the formula of Fig. 7-6 (a)
for Bellcore or BT application.
0.1uF
Must rest by
microcontroller
or by RC pulse.
(This net must as short as possible)
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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