isd-t360sb ETC-unknow, isd-t360sb Datasheet - Page 49
![no-image](/images/no-image-200.jpg)
isd-t360sb
Manufacturer Part Number
isd-t360sb
Description
Manufacturer
ETC-unknow
Datasheet
1.ISD-T360SB.pdf
(112 pages)
- Current page: 49 of 112
- Download datasheet (2Mb)
2—SOFTWARE
BUSY AND DIAL TONES
Busy and dial-tone detectors work with a band-
pass filter that limits the frequency range in which
tones can be detected to 0–1100Hz. Figure 2-2
shows the frequency response of this band-pass
filter.
The design of the busy-tone detector allows very
high flexibility in detecting busy tones with varying
cadences.
The tunable parameters are divided into four sets:
ISD
1. Busy Tone On-time and Off-time Range
2. Busy Tone Cadence Control Specification
Specification:
BUSY_DET_MIN_ON_TIME
BUSY_DET_MIN_OFF_TIME
BUSY_DET_MAX_ON_TIME
BUSY_DET_MAX_OFF_TIME
BUSY_DET_VERIFY_COUNT
BUSY_DET_DIFF_THRESHOLD
BUSY_DET_TONE_TYPE
BUSY_DET_VERIFY_COUNT determines the
number of On/Off cadences that detector
should detect before reporting busy tone
presence.
BUSY_DET_DIFF_THRESHOLD describes the
maximum allowed difference between
Figure 2-2: Busy-Tone Detector—Default Cadence Specification
[E
1
–
E
3
] < 100 ms [S
E
1
1
–
S
1
S
3
] < 100 ms 100 < E
E
2
3. Busy and Dial Tone Energy Thresholds
4. Busy Detection Time
two compared On or Off periods, as deter-
mined by the BUSY_DET_TONE_TYPE tunable
parameter.
BUSY_DET_TONE_TYPE specifies the type of
cadences that are supported.
Legal values are:
Two cadences only
Three cadences only
Both two and three cadences.
The acceptance criteria for two cadences:
[E1–E3] < BUSY_DET_DIFF_THRESHOLD
and
[S1–S3] < BUSY_DET_DIFF_THRESHOLD
The acceptance criteria for three cadenc-
es:
[E1–E4] < BUSY_DET_DIFF_THRESHOLD
and
[S1–S4] < BUSY_DET_DIFF_THRESHOLD
TONE_DET_ON_ENERGY THRESHOLD
TONE_DET_OFF_ENERGY THRESHOLD
BUSY_DET_MIN_TIME
i
< 1680 ms 70 < S
S
2
E
3
i
< 1220 ms
S
3
ISD-T360SB
2-13
Related parts for isd-t360sb
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ISD-300A1](/images/manufacturer_photos/0/1/179/cypress_semiconductor_corp_tmb.jpg)
Part Number:
Description:
IC USB 2.0 BRIDGE BULK 100LQFP
Manufacturer:
Cypress Semiconductor Corp
Datasheet:
![ISD-ES_MINI_USB](/images/manufacturer_photos/0/4/485/nuvoton_technology_corporation_of_america_tmb.jpg)
Part Number:
Description:
Manufacturer:
Nuvoton Technology Corporation of America
Datasheet:
![ISD-2130demoSOP-14](/images/manufacturer_photos/0/4/485/nuvoton_technology_corporation_of_america_tmb.jpg)
Part Number:
Description:
Manufacturer:
Nuvoton Technology Corporation of America
![isd-9210](/images/no-image3.png)
Part Number:
Description:
Isd-9210 Balanced Pin Diode Switches With Integral Drivers
Manufacturer:
Crane Aerospace & Electronics.
Datasheet:
![isd-9200](/images/no-image3.png)
Part Number:
Description:
Isd-9200 Series Spst Balanced Pin Diode Switches With Integral Drivers
Manufacturer:
Crane Aerospace & Electronics.
Datasheet:
![isd-9900](/images/no-image3.png)
Part Number:
Description:
Isd-9900 Series Spst Balanced Pin Diode Switches With Integral Drivers
Manufacturer:
Crane Aerospace & Electronics.
Datasheet:
![isd-9110](/images/no-image3.png)
Part Number:
Description:
Isd-9110 Series Spst Balanced Pin Diode Switches With Integral Drivers
Manufacturer:
Crane Aerospace & Electronics.
Datasheet:
![ISD-COB17](/images/no-image3.png)
Part Number:
Description:
The ISD-COB17xxx COB/Demo board
Manufacturer:
WINBOND [Winbond]
Datasheet:
![ISD-VM1110A](/images/manufacturer_photos/0/4/485/nuvoton_technology_corporation_of_america_tmb.jpg)
Part Number:
Description:
MODULE FOR VOICE REC/PLAY 10S
Manufacturer:
Nuvoton Technology Corporation of America
![ISD-COB17240](/photos/9/3/90390/isd-cob17240__top_side__tmb.jpg)
Part Number:
Description:
BOARD DEMO FOR ISD17240
Manufacturer:
Nuvoton Technology Corporation of America
Datasheet:
![ISD-COB1760](/photos/9/5/90558/isd-cob1760_tmb.jpg)
Part Number:
Description:
BOARD DEMO FOR ISD1760
Manufacturer:
Nuvoton Technology Corporation of America
Datasheet:
![ISD-COB17150](/photos/9/5/90559/isd-cob17150_tmb.jpg)
Part Number:
Description:
BOARD DEMO FOR ISD17150
Manufacturer:
Nuvoton Technology Corporation of America
Datasheet:
![ISD-ES15100_USB](/photos/9/6/90628/isd-es15100_usb_tmb.jpg)
Part Number:
Description:
BOARD EVALUATION USB FOR I15100
Manufacturer:
Nuvoton Technology Corporation of America
Datasheet:
![ISD-ES521](/images/manufacturer_photos/0/4/485/nuvoton_technology_corporation_of_america_tmb.jpg)
Part Number:
Description:
Manufacturer:
Nuvoton Technology Corporation of America
Datasheet:
![CY7C68310](/images/no-image3.png)
Part Number:
Description:
ISD-300LP Low-Power USB 2.0 to ATA/ATAPI Bridge IC
Manufacturer:
CYPRESS [Cypress Semiconductor]
Datasheet: