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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

! z; X) C a% j客户要求如下,如果哪家工厂可以做,请和我联系
6 e4 P* x* M6 D D( j> The application that we have in mind is similar to others that we commonly
/ s- j1 o/ t8 P: g; A- t> have. If we were to pay for FCC approval, we would want to use the modem
$ e6 m5 k. ^( l7 ^ > units in all similar applications under the same approval number.
+ _3 m8 a8 O4 f$ ^3 f> Therefore, we would like to be able to configure the units to a specific
! V9 V8 U$ U: N. f; x G% x> application. For the business that we do, this approach will yield more
' T% d5 ~/ L: C! t h/ ^7 r" e9 ^$ P> sales based on the same product and approval. We are interested in the
# `, [) V2 x$ c8 X> following specifications:
" |4 |1 N" m r$ D+ p" }7 B: b9 R>
2 d8 q4 \$ \# C4 n) K > - 2 inputs at the Transmitter with three possibilities;
1 L7 l1 X g% h > 2 analog
8 [; `+ n; A6 O/ D4 y `0 [# t7 v( M; T> 2 digital
5 m1 z( E& Q& W3 U4 t > 1 analog and 1 digital
! q; i! r2 m" c; F! x >
7 G' q q; I, ?. x$ Q$ x > - 2 outputs at the Receiver with three possibilities to match inputs
& p" D' k$ e/ B2 W8 n5 g >
; L8 x6 q' u+ s6 o: c& y* u> - Ability to configure/define analog Transmitter input ranges through
) j3 c; Y* K/ g2 K9 s9 j8 }> simple programming method to correspond with full-range analog Receiver
& g% a9 r! p7 w7 _> outputs (0 - full voltage).
, l# Z3 v2 C `8 q) C6 @ >
: m1 o; m4 Q3 [0 h. h/ b6 x > - Ability to configure and set sample rates for the inputs.
( C/ ?, |+ t9 C# x" p>
! T& Q& U: ~' G: r9 f8 q > - Digital output on Transmitter that turns on during the sampling period.
4 N, o. r& {) k>
D% H. X0 ~; O0 t6 Q> - Ability to configure a power saving Sleep Mode in the Transmitter by
6 U! W+ ~5 [" n1 ^; f$ ^ > both software control and input hardware control.
$ `0 q/ g$ Z8 X9 s: q9 |& y9 d>
M# J9 D/ [: H3 S2 r# _' k& i$ O$ } > In order to configure the units, we would need a way to make the
3 E8 u& t" S9 I6 `> settings. This would preferably be from a computer terminal so that
4 }2 `5 b; f: j( T W> configurations can be saved or easily duplicated for production volumes.
|4 g! Y' W8 J/ m* l, g- W > The units should be small and compact with shielding, and able to mount
; d7 h7 O- c9 ]" o" [7 L2 b> to a printed circuit board with header connector.
, g* q c7 S5 P1 W5 I >
5 v3 |2 I- t6 F9 q. q! }> At this time, we are interested in samples of a pair of modems that
" l4 i9 N+ D& o' ]7 H' u> might be similar to this proposed system. We do not expect that you
J+ n* ^ z4 T# z4 ` > provide all of these specifications at this time. I can describe our
8 i# |' R2 c3 x2 ~* c- {* a> immediate application needs in the next email if this project is of
. @6 x t6 ?, ]+ z > interest to you. Perhaps you can make the samples by those
6 e1 N9 f# C9 e4 }1 Z> specifications. This will allow us to test your radios before we move
: f+ q* ^, l% \> forward. We are interested in your 900MHz radio to start.
9 v1 j, `0 Z" y- Z
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