数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

AS2525F 数据表(PDF) 11 Page - ams AG

部件名 AS2525F
功能描述  Single-Chip Handsfree Phone CMOS Integrated Circuit
PDF  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS2525F 数据表(HTML) 11 Page - ams AG

Back Button AS2525F Datasheet HTML 7Page - ams AG AS2525F Datasheet HTML 8Page - ams AG AS2525F Datasheet HTML 9Page - ams AG AS2525F Datasheet HTML 10Page - ams AG AS2525F Datasheet HTML 11Page - ams AG AS2525F Datasheet HTML 12Page - ams AG AS2525F Datasheet HTML 13Page - ams AG AS2525F Datasheet HTML 14Page - ams AG AS2525F Datasheet HTML 15Page - ams AG Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 28 page
background image
Datasheet AS2525
austriamicrosystems
Revision 2.1
Page 10 of 27
Side-Tone
A good side-tone cancellation can be achieved by using
the following equation:
ZBAL/ZLINE = 10
This is assuming that the side-tone reference resistor, R2
(between LI and STB) is 300
Ω and R1 is 30 Ω.
ZLINE
R1 = 30 ohm
R2 = 300 ohm
ZBAL
Figure 5: Side-tone balance
Transmit Path
The gain of the M1/M2 —> LS path is default set to 37 dB.
This gain can be changed from 30 dB to 45 dB in 1 dB
steps by set-up programming.
Table 8: Handset Tx gain setting
[PG] + [0] + (Password) + [0] + [1] + (x) + [PG]
Key
(x)
Tx Gain (dB)
M1/2 to LS
Key
(x)
Tx Gain (dB)
M1/2 to LS
[0]
30
[8]
38
[1]
31
[9]
39
[2)
32
[M1]
40
[3]
33
[M2]
41
[4]
34
[M3]
42
[5]
35
[M4]
43
[6]
36
[M5]
44
[7]
37
[M6]
45
The input is differential with an impedance of 10 k
Ω. The
soft clip circuit limits the output voltage swing at pin LS to
2 VPEAK when activated.
Table 9: Handset Tx soft clipping selection
[PG] + [0] + (Password) + [#] + [4] + (digit) + [PG]
Digit
Handset Tx Soft Clipping
[0]
Disabled
[1]
Enabled (2 VPEAK)
There is optional LLC for this path.
The gain of the M3/M4 —> LS path is default set to 46 dB.
This gain can be changed from 39 dB to 54 dB in 1 dB
steps by set-up programming.
Table 10: Handsfree Tx gain setting
[PG] + [0] + (Password) + [0] + [3] + (x) + [PG]
Key
(x)
Tx Gain (dB)
M3/4 to LS
Key
(x)
Tx Gain (dB)
M3/4 to LS
[0]
39
[8]
47
[1]
40
[9]
48
[2]
41
[M1]
49
[3]
42
[M2]
50
[4]
43
[M3]
51
[5]
44
[M4]
52
[6]
45
[M5]
53
[7]
46
[M6]
54
The input is differential with an impedance of 10 k
Ω.
The soft clip circuit limits the output voltage swing at pin
LS to 2 VPEAK when activated
.
Table 11: Handsfree Tx soft clipping selection
[PG] + [0] + (Password) + [9] + [2] + (digit) + [PG]
Digit
Handsfree Tx Soft Clipping
[0]
Disabled
[1]
Enabled (2 VPEAK)
There is no LLC option for this path.
Receive Path
The gain of the LS —> RO receive path is default set to 1
dB. This gain can be changed from -6 dB to 9 dB in 1 dB
steps by set-up programming.
Table 12: Handset Rx gain setting
[PG] + [0] + (Password) + [0] + [2] + (x) + [PG]
Key
(x)
Rx Gain (dB)
LS to RO
Key
(x)
Rx Gain (dB)
LS to RO
[0]
-6
[8]
2
[1]
-5
[9]
3
[2]
-4
[M1]
4
[3]
-3
[M2]
5
[4]
-2
[M3]
6
[5]
-1
[M4]
7
[6]
0
[M5]
8
[7]
1
[M6]
9
When the handset volume control is enabled (see Table 3:
Parameter settings), the user can also change the gain
within this range in 4 dB steps via the [V+]/[V-] keys. The
default receive gain in handset and headset mode must lie
between position 5 and 9 for correct operation of the
volume control. The receive input is the differential signal
of RI and STB. The soft clip circuit limits the output voltage
at RO to 1 VPEAK. It prevents harsh distortion and acoustic
shock.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com