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[寻求合作]音频传输模块,做出口

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安防幼儿园学生

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发表于 2007-5-27 20:29:37 | 显示全部楼层 |阅读模式

+ |9 Q; g$ ?' Z( f客户要求如下,如果哪家工厂可以做,请和我联系
* U; S3 `8 @9 }5 W2 n1 F( F9 }( [0 d0 ^3 u> The application that we have in mind is similar to others that we commonly
6 x8 p& a1 L8 K9 C7 t6 Y> have. If we were to pay for FCC approval, we would want to use the modem
3 W% e2 o% Z1 D. I# o }0 I3 {# E > units in all similar applications under the same approval number.
5 F" ~/ [3 v1 ], n2 Y> Therefore, we would like to be able to configure the units to a specific
' N& \! U: K% U: T8 z. `1 r> application. For the business that we do, this approach will yield more
% v7 q& \5 o) B G; C > sales based on the same product and approval. We are interested in the
8 g& o4 V' [: \3 Q1 g> following specifications:
0 H/ }- r' }4 \7 f. Z1 {, b>
% k) j3 q6 G; X% ]8 @" M# \ > - 2 inputs at the Transmitter with three possibilities;
$ P$ |" B; z$ i- H% f8 H > 2 analog
* N9 h" Z* P3 u* W' m > 2 digital
6 N* U4 u8 ~! S# \5 ^; l > 1 analog and 1 digital
4 T4 g' u" E: H$ x! Y2 l) Z* o0 z >
" h4 m4 P. B! g$ Y8 W> - 2 outputs at the Receiver with three possibilities to match inputs
' k* c Z0 V6 b' H, c' ]6 P>
% O" z. O. N8 @3 Z4 S> - Ability to configure/define analog Transmitter input ranges through
) G8 u A, S) E0 F > simple programming method to correspond with full-range analog Receiver
! M$ t* R; t% Z4 @" o> outputs (0 - full voltage).
1 M! r5 t, b2 t! J, @ >
* D8 m5 L: C( a M1 _) n2 N9 c > - Ability to configure and set sample rates for the inputs.
! B/ v& ~0 R" V4 _1 I/ ]>
, e; S$ W! v$ g& ]( A5 B1 R# m> - Digital output on Transmitter that turns on during the sampling period.
: U8 V, w& c4 T( i>
1 S5 D. e: ^. t- f/ g > - Ability to configure a power saving Sleep Mode in the Transmitter by
: |+ b% E# f: Q, z: k) k> both software control and input hardware control.
6 t# V& W7 B9 z! L' l4 A>
0 M9 F; t+ u. b> In order to configure the units, we would need a way to make the
, p9 S; m8 _5 X, Y/ f# J3 H> settings. This would preferably be from a computer terminal so that
8 X& l- u' @5 B( a> configurations can be saved or easily duplicated for production volumes.
( F9 L) c+ ] b( |# x* w > The units should be small and compact with shielding, and able to mount
. R5 `8 N" W" `" c# k+ J > to a printed circuit board with header connector.
: J% ~; j- h4 g4 C >
' [2 W5 E9 C& W& M- r' E( @> At this time, we are interested in samples of a pair of modems that
2 E. t+ z# g7 ?$ J8 E> might be similar to this proposed system. We do not expect that you
7 ~+ @! s. F$ B& g/ d1 r > provide all of these specifications at this time. I can describe our
8 g9 K7 V5 G& Q# @, n > immediate application needs in the next email if this project is of
3 I+ L( [$ f: F% C > interest to you. Perhaps you can make the samples by those
; _# y" G z. C- u > specifications. This will allow us to test your radios before we move
& C4 F6 @, ~# W0 u( o0 z; L > forward. We are interested in your 900MHz radio to start.
* T; m2 g9 ~. {1 }
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