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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

* Z0 y1 Q+ t: O1 a 客户要求如下,如果哪家工厂可以做,请和我联系
/ w5 e; s. D! r3 c( t: n> The application that we have in mind is similar to others that we commonly
F- ^5 A8 Y* m; W* r3 f> have. If we were to pay for FCC approval, we would want to use the modem
& y. k' _/ q& U& e! p> units in all similar applications under the same approval number.
$ p$ L! ~& j9 j' a! K> Therefore, we would like to be able to configure the units to a specific
/ _/ \) z+ u0 D6 y7 k" R> application. For the business that we do, this approach will yield more
1 l$ _8 |# |0 b3 I8 V1 o> sales based on the same product and approval. We are interested in the
$ Q7 k3 N" s9 _( ^ > following specifications:
7 ^9 W8 S7 v7 x; b: W) V; f! Q4 ^>
$ M% u: J* T+ V( c > - 2 inputs at the Transmitter with three possibilities;
$ _ c/ r7 Q+ I& z8 c6 m3 m> 2 analog
5 ^# ^2 h# `; I) r3 d$ c& G> 2 digital
$ y$ f3 C; ~# B* M4 P2 h6 p7 B- S > 1 analog and 1 digital
: e8 h; D" i; V- N- s. C>
( v+ w% k1 \! |) d8 U7 k8 k5 Q' `> - 2 outputs at the Receiver with three possibilities to match inputs
; {! C9 }3 l M6 {5 K1 z >
- D* R% c! G+ W' z& ?. ]> - Ability to configure/define analog Transmitter input ranges through
3 a, y( Y5 ^8 [4 p > simple programming method to correspond with full-range analog Receiver
& `3 ^( p1 {$ J/ P/ O; C> outputs (0 - full voltage).
& A* Q7 f' R. A>
% t/ Z7 s! |& e2 C" L, f> - Ability to configure and set sample rates for the inputs.
8 E0 h( h7 n9 [ f8 ^/ L+ q1 d% N>
6 o. O9 K8 d0 X! Q! y# ^! m5 Z> - Digital output on Transmitter that turns on during the sampling period.
( C: {- ]& N. X. R2 q+ f>
; v$ [! u, L* H9 g K) U: T1 O > - Ability to configure a power saving Sleep Mode in the Transmitter by
- `$ D2 G; B$ S# r4 Y, @$ L. w> both software control and input hardware control.
8 i# u' ?8 V! \: t& g% \( s >
2 N& V9 @' L0 x/ Z: w) P7 r> In order to configure the units, we would need a way to make the
" O+ O) S0 q B# [, T+ ~! g> settings. This would preferably be from a computer terminal so that
8 B4 r; ^$ \& M7 v6 h7 Y. E> configurations can be saved or easily duplicated for production volumes.
# O) p) [- s1 o/ b$ f0 z> The units should be small and compact with shielding, and able to mount
5 u& _' u9 O! ~9 N > to a printed circuit board with header connector.
. {0 U" J6 V; {9 p3 }9 G >
( F. u2 D0 M0 J2 t! x- i > At this time, we are interested in samples of a pair of modems that
k9 v2 m& k' q' }5 T > might be similar to this proposed system. We do not expect that you
7 F! b- M2 o$ e9 J' R3 U9 d" I > provide all of these specifications at this time. I can describe our
0 m5 C! O2 X+ z5 ~$ C. N. j > immediate application needs in the next email if this project is of
! a- Q2 V) c% M y5 d0 s) } w1 Y0 h > interest to you. Perhaps you can make the samples by those
0 N$ c7 h& H3 V" G) b7 x* X, w > specifications. This will allow us to test your radios before we move
/ R6 W) R. C( C8 B/ R > forward. We are interested in your 900MHz radio to start.
" M1 y+ M, X$ Z# @; g. r
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