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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

( W+ p1 C* [. a! F' @" j客户要求如下,如果哪家工厂可以做,请和我联系
0 f9 E. a7 o& C8 [: Q. x4 W > The application that we have in mind is similar to others that we commonly
- s' D- m( m" B) w> have. If we were to pay for FCC approval, we would want to use the modem
. ~4 V' T/ ~5 z! C) y, _> units in all similar applications under the same approval number.
7 i0 x+ o" E: e; @( @> Therefore, we would like to be able to configure the units to a specific
% f3 ?( A6 ?4 K+ ~6 w, @' w, U* @ > application. For the business that we do, this approach will yield more
* q+ k3 z; f/ v; s > sales based on the same product and approval. We are interested in the
# Q; J6 v3 w# D' i( O$ ?7 y8 K# r> following specifications:
; _: l& v0 i8 k( ~; \0 s6 ? >
4 P! P' D7 V' H2 R: g" n f) n> - 2 inputs at the Transmitter with three possibilities;
1 [7 E! e/ N1 S; o$ ~> 2 analog
# i3 v2 m+ x+ A o4 E% q- a4 b > 2 digital
8 o; f% G( B: {- f! k( t > 1 analog and 1 digital
- W5 e; K8 F8 _/ ]) v; G>
8 N4 q6 P" K! v- U. Q8 \( T > - 2 outputs at the Receiver with three possibilities to match inputs
9 g4 Y4 Y) U. e1 Z1 _+ O >
! c9 A, ^9 M1 I> - Ability to configure/define analog Transmitter input ranges through
' s' x: K' A5 O; F5 m > simple programming method to correspond with full-range analog Receiver
0 f/ C$ V0 ^2 \: T > outputs (0 - full voltage).
" X6 t$ w8 `" Z9 ?7 L2 [# B >
/ H( d% }- Q& E2 x6 M& c > - Ability to configure and set sample rates for the inputs.
' e/ z9 E5 X' v/ G4 A) ^( D>
$ `* O, q1 j. t2 _- D6 ] > - Digital output on Transmitter that turns on during the sampling period.
0 n9 O3 w, C9 M, f$ s! m >
# G! a2 P# F* M. x0 V9 r5 q6 ^1 F> - Ability to configure a power saving Sleep Mode in the Transmitter by
) P* u0 u9 i( k( O# P% H/ R> both software control and input hardware control.
% t# `3 t, E( i" J: V" g >
4 k: c2 U, R- g" d0 k7 z > In order to configure the units, we would need a way to make the
* t8 m$ z6 |, r2 O \( M> settings. This would preferably be from a computer terminal so that
4 P" w2 _/ q; K2 G3 g$ e > configurations can be saved or easily duplicated for production volumes.
9 F& v- ?% y( f' D) H" F0 T# {> The units should be small and compact with shielding, and able to mount
# ~5 {+ X0 t- l, J/ E > to a printed circuit board with header connector.
: V2 K" Z& e4 E >
4 b2 F7 W' o* B" {" T1 k> At this time, we are interested in samples of a pair of modems that
& }2 [& H, P" {/ l9 P5 t> might be similar to this proposed system. We do not expect that you
4 Q$ ~0 I) r4 p) R! }, O' D$ |> provide all of these specifications at this time. I can describe our
: V: ]& ], F! K1 J& R > immediate application needs in the next email if this project is of
* ]; ~7 g; ?! S' y" x( a. [) E4 ` > interest to you. Perhaps you can make the samples by those
* d; T% C" [: L3 o7 L& C b+ T> specifications. This will allow us to test your radios before we move
: c' r7 R) `$ d5 ~ > forward. We are interested in your 900MHz radio to start.
, O, o! \+ ?% v: d7 v( y- {8 j
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