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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

, D( V$ H% N. ~# @ g8 N3 J客户要求如下,如果哪家工厂可以做,请和我联系
2 i% k; d3 z1 A8 |1 i" v> The application that we have in mind is similar to others that we commonly
! K7 O1 `/ p2 c4 h h> have. If we were to pay for FCC approval, we would want to use the modem
( W' }' m( V l( c0 w& y/ v; x> units in all similar applications under the same approval number.
, N9 R, ]% F, z9 }3 y2 o/ E > Therefore, we would like to be able to configure the units to a specific
: ?1 H' e. [1 L$ g) N> application. For the business that we do, this approach will yield more
" x6 G g8 t. N0 `> sales based on the same product and approval. We are interested in the
; o, u( F Y4 f' O. \1 {& X9 @ > following specifications:
3 P6 [, d4 b8 v* f) x. | >
; Q' U. E' z- T9 n p6 z> - 2 inputs at the Transmitter with three possibilities;
# b/ A/ A/ b0 |: q7 |( ^) i> 2 analog
6 M3 C/ {. c7 U > 2 digital
/ b4 Z/ T8 @4 h3 y. P% j2 b) P) z6 h> 1 analog and 1 digital
+ c6 v% K8 b0 W! n9 a >
3 n/ @9 T, j# T$ E> - 2 outputs at the Receiver with three possibilities to match inputs
7 V* r# n" u* r>
5 c: k& c |. o4 O- t- } > - Ability to configure/define analog Transmitter input ranges through
9 Z4 L2 M6 m; C6 r > simple programming method to correspond with full-range analog Receiver
" n8 A b/ d2 Y3 q$ ?& G> outputs (0 - full voltage).
1 l/ e) i# |7 P7 B G0 S, y0 m( A S>
. `% D! z8 a, h: q6 a8 q7 ` > - Ability to configure and set sample rates for the inputs.
% i; o/ r: ^9 @9 ?) e/ c$ a+ { >
2 Q2 L7 O* E! X& Y+ z) g> - Digital output on Transmitter that turns on during the sampling period.
, Q4 B0 Q+ ^( ~; W7 m8 ^ >
( y' j' L7 Q# b' X; h5 k _' o! R > - Ability to configure a power saving Sleep Mode in the Transmitter by
' i8 D0 {1 t$ X6 }3 n9 H1 G > both software control and input hardware control.
8 t( Y7 }" {. d7 k6 Z$ t" o+ P; U>
4 x5 V( V+ p2 }+ j9 A" y> In order to configure the units, we would need a way to make the
4 A& D; z( w0 Z6 t( E> settings. This would preferably be from a computer terminal so that
" Z* r6 T" i) a > configurations can be saved or easily duplicated for production volumes.
4 T- T- D) d2 x7 l% W> The units should be small and compact with shielding, and able to mount
! b; J( o: q( L > to a printed circuit board with header connector.
0 L" H5 t* @+ [4 q9 |3 g >
4 `9 I) Z1 K( B8 O, l> At this time, we are interested in samples of a pair of modems that
# _ N) w$ s% k. o> might be similar to this proposed system. We do not expect that you
% n3 O- q6 `$ S: u. [+ B> provide all of these specifications at this time. I can describe our
6 w& x0 U/ B/ }) ]% \; i> immediate application needs in the next email if this project is of
) [$ q1 G, I: V0 f> interest to you. Perhaps you can make the samples by those
; V- `7 a; k; k' p+ P > specifications. This will allow us to test your radios before we move
$ {9 b/ I y5 h' v; z. e8 s& D> forward. We are interested in your 900MHz radio to start.
. ]) M0 X$ e8 ?/ ~1 J# M9 H
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