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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

* s1 g' A0 H+ O/ {5 x: e* P 客户要求如下,如果哪家工厂可以做,请和我联系
' P# ]: `1 [+ L7 I2 [7 v5 W, \ > The application that we have in mind is similar to others that we commonly
3 ^3 r8 ], a) r8 b& i- s3 O( c > have. If we were to pay for FCC approval, we would want to use the modem
& o# g( Q4 F, E1 y7 j( i> units in all similar applications under the same approval number.
& a$ X% E g( M# v& s J! b: R* a > Therefore, we would like to be able to configure the units to a specific
( y" h0 I7 l8 M( O0 ?7 P> application. For the business that we do, this approach will yield more
) h# s3 F4 ~# g* U+ `# b% ] > sales based on the same product and approval. We are interested in the
+ j* S4 I6 F6 L/ l8 i" G! m > following specifications:
8 W# s( }" H7 K$ i' h1 ^>
+ V! Q% ^8 s' g) {5 ~. Z" B9 c > - 2 inputs at the Transmitter with three possibilities;
) e% F# g* K% u5 s/ I> 2 analog
; v. W( Z& S3 i; V# I> 2 digital
( T9 K. b- K3 {; q" V > 1 analog and 1 digital
- H; ], f$ X7 ? q# p>
, O5 K/ b/ W- [: L; O, F/ Z: E> - 2 outputs at the Receiver with three possibilities to match inputs
; i! S2 J$ ^* P0 Z, ^3 R9 e/ _( I g R/ @ >
; c9 E; j/ M3 d8 P) y! ]> - Ability to configure/define analog Transmitter input ranges through
' _4 Z ~( V/ ~4 |8 Z2 s> simple programming method to correspond with full-range analog Receiver
2 k+ ?7 M5 O! M0 n' ^! L> outputs (0 - full voltage).
6 ~* m' p+ f/ `5 x2 I( M) ] M7 v>
8 M) T" M. Y. D1 T, b. B; b > - Ability to configure and set sample rates for the inputs.
$ w, W& V& t" `4 f1 j$ ^>
: m7 ~" S$ h. r# h> - Digital output on Transmitter that turns on during the sampling period.
6 L' b, U; ~2 ?. j7 B9 I" F>
- V8 G: ]5 }0 g; j> - Ability to configure a power saving Sleep Mode in the Transmitter by
3 u2 K3 S8 k g* e! Y3 V> both software control and input hardware control.
" y B, i2 v3 X; M2 R" F>
% d) s2 ^. h5 ^* j5 F/ _ > In order to configure the units, we would need a way to make the
& k) x# ^! O0 H, I+ T( t3 @> settings. This would preferably be from a computer terminal so that
* m- o b- C {( ?: L) O! C8 z: I > configurations can be saved or easily duplicated for production volumes.
$ o6 b# _$ r# \7 l1 k: d > The units should be small and compact with shielding, and able to mount
7 \$ g! a8 U' U+ A9 S* r$ L% E- p > to a printed circuit board with header connector.
, M9 q2 f* r; v >
" r2 U8 I8 W. Y9 E: f: k# ~ > At this time, we are interested in samples of a pair of modems that
9 ^) J9 A. G% y2 c, H0 U$ n$ k > might be similar to this proposed system. We do not expect that you
6 e! `5 a) i" E* O5 J> provide all of these specifications at this time. I can describe our
* H" K" ~( b' _5 v/ x$ ? > immediate application needs in the next email if this project is of
0 F+ j' l! r6 Q1 Q. C$ ?3 |( W. g> interest to you. Perhaps you can make the samples by those
b- h0 [: `3 X> specifications. This will allow us to test your radios before we move
6 N, N. w7 A! P > forward. We are interested in your 900MHz radio to start.
a9 u) @: W1 b$ a! S/ p" m7 g
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