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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 [, z% M9 B; E% L( t% \客户要求如下,如果哪家工厂可以做,请和我联系
0 D* M3 R1 N2 o l' Q% f > The application that we have in mind is similar to others that we commonly
5 j- ?5 j% @2 L) R; V5 g1 \> have. If we were to pay for FCC approval, we would want to use the modem
4 |# C a J5 G/ t- m! E' T+ @ > units in all similar applications under the same approval number.
* a+ H" S6 D3 R > Therefore, we would like to be able to configure the units to a specific
# h0 Y( @! ?& S+ [7 y > application. For the business that we do, this approach will yield more
+ R7 Z3 v+ h' n! k) Q# y& g- c! }> sales based on the same product and approval. We are interested in the
* d6 n% f3 ?$ \$ V/ `> following specifications:
* Y$ u' E' k) q O >
# q) b% a0 S4 J> - 2 inputs at the Transmitter with three possibilities;
1 Z/ O, a q3 w) d8 [6 y9 X > 2 analog
. Q7 M6 m( r; d0 K+ e% X {> 2 digital
. y" `' D% x& r9 \, i> 1 analog and 1 digital
. T7 \/ W9 W" o0 N; Y8 b9 Z* c >
) A* V" W2 ^/ Q- ~ > - 2 outputs at the Receiver with three possibilities to match inputs
& {% Z( l. ^& s. U' ] >
6 {+ D Z* c' S, W" c$ b! n> - Ability to configure/define analog Transmitter input ranges through
7 y. d6 m% H& M: V > simple programming method to correspond with full-range analog Receiver
! i0 Z( \2 a& S: B; X7 i/ n7 ]. k > outputs (0 - full voltage).
. ~4 ~% e! p5 I, A* S >
7 C2 Z9 C! O. q& ~/ v: v0 B8 U> - Ability to configure and set sample rates for the inputs.
2 U" d' v$ k2 S b% V% [. x* e>
# ?. W; B1 e- C) T6 A( Q> - Digital output on Transmitter that turns on during the sampling period.
% |2 V, e& Q# Q8 i$ x >
* p: s6 A5 f5 C& G9 L> - Ability to configure a power saving Sleep Mode in the Transmitter by
5 [4 y+ y: F U0 t6 q > both software control and input hardware control.
! o& ?" m; ]% Y; K>
) |' x4 s* \1 X0 s* q4 {+ ] > In order to configure the units, we would need a way to make the
_: y' q L! R1 s5 g) |> settings. This would preferably be from a computer terminal so that
. ?! B( q3 ^ r1 N. r3 D+ e' l, J > configurations can be saved or easily duplicated for production volumes.
; g a9 r! O; C% K- k# V > The units should be small and compact with shielding, and able to mount
3 k% e. G' K$ y> to a printed circuit board with header connector.
5 C5 g Z7 O& F5 I' n. E>
& Y* Q5 r- K1 X8 i6 V5 g6 p > At this time, we are interested in samples of a pair of modems that
2 ^) w: ~0 J1 M7 X4 x# q @3 A> might be similar to this proposed system. We do not expect that you
8 t# b6 L/ L8 K' a: ?; V% M8 a; z D> provide all of these specifications at this time. I can describe our
I: Z/ j1 X$ p4 m$ V) L0 S > immediate application needs in the next email if this project is of
; g7 v' Z" y( E. W- ] > interest to you. Perhaps you can make the samples by those
" C, ~9 R1 Y2 p3 ^" M9 b2 E > specifications. This will allow us to test your radios before we move
2 `1 S8 W6 j' ^ > forward. We are interested in your 900MHz radio to start.
% P/ ]* v: F: M1 J
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