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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

, R0 J, ~6 U) P8 b 客户要求如下,如果哪家工厂可以做,请和我联系
3 @" A' Z2 a9 b8 b4 V> The application that we have in mind is similar to others that we commonly
) w6 n1 E( ]. k" h7 p" I > have. If we were to pay for FCC approval, we would want to use the modem
" z8 n2 R: j( s5 ^0 L$ O. X7 c > units in all similar applications under the same approval number.
" ~" f" z2 M" Y$ ?6 ]) a> Therefore, we would like to be able to configure the units to a specific
8 |" f" c" y& h+ p }4 c3 _; n" L> application. For the business that we do, this approach will yield more
0 m u) ~* @$ P/ s/ J > sales based on the same product and approval. We are interested in the
( u' m- A* _6 Z4 G) P> following specifications:
" {1 S, A# |7 @, r >
# Z( H7 |& k7 q: |> - 2 inputs at the Transmitter with three possibilities;
; \* Q, L" P8 E) U& y* i$ l > 2 analog
2 o, f8 a- x3 |0 W- K> 2 digital
- I# e* a; y4 q; l6 u> 1 analog and 1 digital
% f; _( _2 s# B1 ]% }( g* K! a >
& h; g" l8 d# u$ J0 U* ^% ^+ O" x > - 2 outputs at the Receiver with three possibilities to match inputs
9 M3 z/ h' C+ c! X* H>
7 W' z$ ~9 b0 W. } > - Ability to configure/define analog Transmitter input ranges through
4 I, j4 f1 g v5 W, G> simple programming method to correspond with full-range analog Receiver
$ K% C+ x7 _& r/ g > outputs (0 - full voltage).
6 t# o8 P2 C0 m>
" r; `1 H' u% F1 h* f9 U > - Ability to configure and set sample rates for the inputs.
+ \6 b/ U# b+ x5 z0 q. {6 b: N+ f>
4 q8 p7 a! w, R' _' {* l# }* U> - Digital output on Transmitter that turns on during the sampling period.
& y; G* j$ k1 @- k# r1 G>
" J1 }9 e! v5 | > - Ability to configure a power saving Sleep Mode in the Transmitter by
# s1 @4 \. D( e1 e" }( j3 ? > both software control and input hardware control.
8 j% W% L5 @- O* t1 o9 i6 m/ Y9 n >
a- A1 a( o3 v$ [ m9 h8 _ > In order to configure the units, we would need a way to make the
% y( l* L+ \4 k8 w> settings. This would preferably be from a computer terminal so that
% H( ~' s2 W5 K/ |> configurations can be saved or easily duplicated for production volumes.
7 d; H! K8 K _+ H> The units should be small and compact with shielding, and able to mount
3 `2 t6 t) K8 Y3 I5 q* b> to a printed circuit board with header connector.
6 n2 m' q) V1 x2 x>
# d1 K& q7 _6 C, e9 h> At this time, we are interested in samples of a pair of modems that
' R2 z5 Z; o! D/ j> might be similar to this proposed system. We do not expect that you
; v q5 ] _& P+ E2 R8 q> provide all of these specifications at this time. I can describe our
: W4 W: L `7 t3 D3 m0 h> immediate application needs in the next email if this project is of
$ ]* x) l& N: B* s( @ > interest to you. Perhaps you can make the samples by those
7 `; i3 {8 C0 j9 p$ }+ Q3 s6 S) k7 P > specifications. This will allow us to test your radios before we move
0 X: S4 W, r9 U$ A- i7 L( P > forward. We are interested in your 900MHz radio to start.
S* d! @ d6 B* T+ w- H
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