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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

- k U3 o9 |: T4 h; g" [' ] 客户要求如下,如果哪家工厂可以做,请和我联系
. S! J" a: K* t" T" e3 Q2 c6 T- S$ B! D0 r > The application that we have in mind is similar to others that we commonly
2 O; f4 r6 ^7 `, b4 v j- X > have. If we were to pay for FCC approval, we would want to use the modem
" X) z2 ^- f; s3 v; R > units in all similar applications under the same approval number.
7 M+ t0 |% I5 P8 i% q > Therefore, we would like to be able to configure the units to a specific
% Y. ]7 v' r1 H9 a; O" r, l- X4 r > application. For the business that we do, this approach will yield more
3 ]2 J1 v4 V. D3 B% p, F! e> sales based on the same product and approval. We are interested in the
/ `( O' R, u( B, \, n! `- v$ Y > following specifications:
0 ~7 O( \8 F, i5 q0 S>
# M# D7 Y& Y- c/ A4 f( ]2 q> - 2 inputs at the Transmitter with three possibilities;
1 j$ X. s4 I, @, b8 Q' B! V$ D9 o > 2 analog
+ N, C2 i/ D% V/ } A) \/ F > 2 digital
! `; _* \6 \: }+ Q7 [> 1 analog and 1 digital
' z! d0 M( x O& p. P, [5 M+ Q8 ~ >
7 Q5 e2 _( T) d1 {5 v4 c > - 2 outputs at the Receiver with three possibilities to match inputs
4 I: s0 G7 S- ]) G7 \. R2 T5 P >
' Y9 Y; ]9 t7 ~+ H7 j9 A> - Ability to configure/define analog Transmitter input ranges through
6 w/ E& T( j% i7 C- _) r0 [ > simple programming method to correspond with full-range analog Receiver
1 Q- [. ^: w7 d) U/ B! b> outputs (0 - full voltage).
6 D3 F1 s0 U' ~: \3 Z1 E( p>
0 U5 ~/ @: ^- M, x! d9 n > - Ability to configure and set sample rates for the inputs.
( T& `3 n4 Z2 `* V; B' k>
6 p3 S5 G, q L! k! b* P8 f! s; q> - Digital output on Transmitter that turns on during the sampling period.
% M# J/ x4 R9 T' ?+ G6 F! g2 V>
4 i0 q& R+ \; `% I0 G3 k> - Ability to configure a power saving Sleep Mode in the Transmitter by
- t1 B$ K. H. m: R% t) _ > both software control and input hardware control.
' y. W. v" \3 M# E5 ^5 k>
* ?6 J+ N( N* T8 ? > In order to configure the units, we would need a way to make the
! {6 U( J& ?* B. m2 k > settings. This would preferably be from a computer terminal so that
$ ?; |/ c' V3 d/ C, ~4 h5 r > configurations can be saved or easily duplicated for production volumes.
/ O5 D8 }( L0 I1 C. F- i; M8 b> The units should be small and compact with shielding, and able to mount
: T. V, M) E8 X) x, ]9 g > to a printed circuit board with header connector.
8 p# ~3 c3 P. g2 A# o>
0 F- a7 o) v! B3 X8 r( @* Y4 e> At this time, we are interested in samples of a pair of modems that
; C$ f( p7 X, Y) I& C" G- `; R > might be similar to this proposed system. We do not expect that you
1 Y9 A8 D" h- E, g> provide all of these specifications at this time. I can describe our
- G- u. V' }1 [7 w3 s> immediate application needs in the next email if this project is of
& S9 K+ R2 q+ E4 o > interest to you. Perhaps you can make the samples by those
/ R, A) _" V" E( ?8 { > specifications. This will allow us to test your radios before we move
- ^6 |1 {% T |9 l$ f> forward. We are interested in your 900MHz radio to start.
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