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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

# ~' r) C- r! @客户要求如下,如果哪家工厂可以做,请和我联系
" ]* l8 @" G9 w- r> The application that we have in mind is similar to others that we commonly
/ }% p' f. M# H# F ]9 p- x > have. If we were to pay for FCC approval, we would want to use the modem
, f( P+ a2 H& w! o( }> units in all similar applications under the same approval number.
, Z) X0 R( f- {) h1 v> Therefore, we would like to be able to configure the units to a specific
; c0 I: [$ x7 }6 d > application. For the business that we do, this approach will yield more
' G/ C% _$ O7 S1 K, L$ Y( s! S> sales based on the same product and approval. We are interested in the
) }9 u0 g. H( k! _: W> following specifications:
2 r/ s o5 E. P# |$ O1 O4 ~- R>
8 z9 ]$ q5 ]* s5 n2 v, h" f& B > - 2 inputs at the Transmitter with three possibilities;
& G# S x2 k( b9 T$ r> 2 analog
* v" o" r$ _/ [; w > 2 digital
" m+ T3 W* ?' O6 \# \# {> 1 analog and 1 digital
; e% q. j1 V7 q& ]& N/ a3 m d/ ^ >
7 R+ p, d! ^1 @4 _+ n> - 2 outputs at the Receiver with three possibilities to match inputs
3 K/ M, y" ^3 z+ S% A( C>
2 O7 V- p4 Q U! o > - Ability to configure/define analog Transmitter input ranges through
# r5 i& B. \# |! h# U2 f> simple programming method to correspond with full-range analog Receiver
3 G; p/ H" d) e3 X6 W > outputs (0 - full voltage).
) D c5 O7 A) G3 h0 }0 f >
6 E- o$ n' d2 x, m > - Ability to configure and set sample rates for the inputs.
. z& `7 y' c9 }2 D, ?>
4 N: ]0 S" y8 Z4 f8 |> - Digital output on Transmitter that turns on during the sampling period.
& b# Y6 i0 a" y >
$ \% y( @4 ]5 @. U > - Ability to configure a power saving Sleep Mode in the Transmitter by
& C5 ~4 W5 O9 j2 p4 ^ > both software control and input hardware control.
0 o' B) A6 l" d8 V2 c8 |>
5 e" Q- T M* u' f5 I/ s > In order to configure the units, we would need a way to make the
4 N/ m3 d4 N( Q. C7 f- Z/ Z0 | > settings. This would preferably be from a computer terminal so that
. T- r( q" @ j* a( }& i' N0 S > configurations can be saved or easily duplicated for production volumes.
# Y' J- B! z5 `& I( D m> The units should be small and compact with shielding, and able to mount
& C* n2 S i# r/ b( N> to a printed circuit board with header connector.
7 q% c: @& T, m# u! B >
1 ~* @( H% C- t/ f3 m+ ` > At this time, we are interested in samples of a pair of modems that
, X- W# b' h3 i4 k3 D; y > might be similar to this proposed system. We do not expect that you
& ^: k' P% Q, m4 W( } > provide all of these specifications at this time. I can describe our
, x; k+ R' n& b7 {- K, l2 L> immediate application needs in the next email if this project is of
& [" r8 n; ~% G5 L$ i1 X0 e7 g/ \# q6 q > interest to you. Perhaps you can make the samples by those
& L1 x8 J& z' N. I& h# Y> specifications. This will allow us to test your radios before we move
9 c8 A4 {* `* `* M! B/ R9 n+ L > forward. We are interested in your 900MHz radio to start.
: ~! W( D& ?% \4 z3 ^+ y4 C, K: H
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