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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

" y m' f7 n' R+ N7 N9 w客户要求如下,如果哪家工厂可以做,请和我联系
: b5 m$ D S% Y7 z> The application that we have in mind is similar to others that we commonly
) O/ _; }3 m' c) p9 p > have. If we were to pay for FCC approval, we would want to use the modem
/ i7 j- J& P- x. k) q6 G > units in all similar applications under the same approval number.
6 V2 y$ o* g" `/ A > Therefore, we would like to be able to configure the units to a specific
2 H# Y: p# [$ P > application. For the business that we do, this approach will yield more
0 E" l* E* |# M! [> sales based on the same product and approval. We are interested in the
. t8 k3 [9 r* L> following specifications:
8 Z4 _1 J; o) I# d n, E/ D>
, L$ C( Z( }) {* Y > - 2 inputs at the Transmitter with three possibilities;
: i! `# n+ n1 K > 2 analog
1 U" V2 S r1 N: G3 k> 2 digital
, C9 s( V% x9 m. q2 |> 1 analog and 1 digital
, }1 O; K& F( s >
B! x8 S" u+ f7 V y+ B$ @ > - 2 outputs at the Receiver with three possibilities to match inputs
5 V$ |0 B$ t2 i! B: {>
( C- V; a9 n; p2 J$ H) z. S' c, a> - Ability to configure/define analog Transmitter input ranges through
6 S7 @0 j9 |* _* q- U4 U, G3 [> simple programming method to correspond with full-range analog Receiver
/ ?/ M* r6 B- C O+ Y6 n; s1 f/ F> outputs (0 - full voltage).
. }# ?+ v1 K& n7 w$ Y: M >
/ `) K4 ^, \) J# j( Q% D5 P% L > - Ability to configure and set sample rates for the inputs.
! |) i0 h% F2 e9 m, y >
' u' ]9 O9 v5 Y# X. H > - Digital output on Transmitter that turns on during the sampling period.
9 E2 P: R. H, E5 a8 o3 m>
3 N' ~$ s% o# M > - Ability to configure a power saving Sleep Mode in the Transmitter by
; h9 X- x5 I; F* A! w# p> both software control and input hardware control.
+ Q8 Q, z! [& F2 d/ ?" }. W; W8 c& p>
1 E, x+ }2 L: h! {! W7 k > In order to configure the units, we would need a way to make the
- z5 g# F4 E# z5 r$ t' L> settings. This would preferably be from a computer terminal so that
1 v9 M, {0 i+ z* h+ d4 o( R> configurations can be saved or easily duplicated for production volumes.
7 z K$ D8 t: P% g/ u- C( b" Y> The units should be small and compact with shielding, and able to mount
0 Y$ l- b; }$ o. {; A' N- V> to a printed circuit board with header connector.
1 Y( F" D) S2 K( }/ y3 R >
! G8 r2 c! W) m2 \6 } > At this time, we are interested in samples of a pair of modems that
; ]) \; I9 @% y' _> might be similar to this proposed system. We do not expect that you
. ^( h; {! u" }) s' n+ ^ > provide all of these specifications at this time. I can describe our
$ A6 d0 _" U2 P r3 { > immediate application needs in the next email if this project is of
! j# k4 M2 v* H% C' J> interest to you. Perhaps you can make the samples by those
5 ^, \; R( ]( M1 g: D/ l; }' o> specifications. This will allow us to test your radios before we move
! y8 e- i, K0 R1 i' s' j+ e2 I > forward. We are interested in your 900MHz radio to start.
3 n: w& B; _) S3 L9 n# m
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