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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

# Q/ [' K: V7 ]3 J! q. D客户要求如下,如果哪家工厂可以做,请和我联系
) S1 C0 p9 M9 @" M> The application that we have in mind is similar to others that we commonly
1 y' B6 t9 b5 B- K% Q> have. If we were to pay for FCC approval, we would want to use the modem
: L) A, Z8 j- |: q3 c( B% h- y > units in all similar applications under the same approval number.
* L' T6 D. z1 L1 G> Therefore, we would like to be able to configure the units to a specific
' U* Z" m. [* D' F8 U> application. For the business that we do, this approach will yield more
% i9 E2 y; U5 l6 C. v> sales based on the same product and approval. We are interested in the
* f/ q, N2 F$ Z# Q1 d5 b. y# P9 Q> following specifications:
& C: ]. [& ^9 Y. E" \$ ^ >
% n9 K- G" G- F! W0 F> - 2 inputs at the Transmitter with three possibilities;
& C$ V1 @* m/ y3 t0 k6 y7 x. g5 C> 2 analog
0 j7 @- z% x- K7 s( j > 2 digital
' S' U6 o# e, G' c* _& V > 1 analog and 1 digital
) |4 [. M6 n S" I \0 N>
4 Y, f3 D/ U8 q6 _9 a> - 2 outputs at the Receiver with three possibilities to match inputs
+ i b. m+ W, G- Y- H2 K >
! E, [- W/ k* \) E > - Ability to configure/define analog Transmitter input ranges through
4 L+ p2 k; ^) ~5 {# a > simple programming method to correspond with full-range analog Receiver
8 U4 y4 B: ?4 R7 F- a1 C, o > outputs (0 - full voltage).
1 I. I; l# X' U: [>
- w s* {! o8 d0 N1 g! U7 f! e > - Ability to configure and set sample rates for the inputs.
5 ~7 X- L$ _$ l6 s >
8 E- S$ N/ D' \# f+ u! A& r7 M > - Digital output on Transmitter that turns on during the sampling period.
% r- b6 m; B, I1 O' s>
/ D: ^( d+ H" a/ W7 M0 g> - Ability to configure a power saving Sleep Mode in the Transmitter by
) U( [* V. O% N5 P> both software control and input hardware control.
S& x1 T+ V+ h* k4 n) W2 A>
; {1 y8 B5 K d9 T> In order to configure the units, we would need a way to make the
% O- X' s, a5 ] N. m i( g/ u6 c > settings. This would preferably be from a computer terminal so that
% Y% T2 b$ p. H > configurations can be saved or easily duplicated for production volumes.
* \* W$ [9 L! M3 [! I7 e& Q > The units should be small and compact with shielding, and able to mount
z. [" T# o: q0 X> to a printed circuit board with header connector.
" i' N1 |1 ~3 R4 E4 ? >
" p' g3 f7 B- u; y* ^+ n> At this time, we are interested in samples of a pair of modems that
# q, r" r7 C7 _" k > might be similar to this proposed system. We do not expect that you
; h9 r- Q+ }6 f. U4 E. W9 U( A > provide all of these specifications at this time. I can describe our
" U0 Q" N0 Y2 S > immediate application needs in the next email if this project is of
( e8 i9 V8 H) ^" ]> interest to you. Perhaps you can make the samples by those
1 o! S+ K5 g9 B1 o/ l> specifications. This will allow us to test your radios before we move
" s; p' c4 U6 @! J# @ > forward. We are interested in your 900MHz radio to start.
% f+ s7 H4 \, ~: D$ F+ Z) |9 N
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