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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

' W3 a4 O% j, S' W8 |4 N 客户要求如下,如果哪家工厂可以做,请和我联系
# ]8 X' a* {% D > The application that we have in mind is similar to others that we commonly
1 Z# {# I0 C: P& X6 w$ D6 c> have. If we were to pay for FCC approval, we would want to use the modem
8 l" I) m U7 X0 h+ n/ P0 L> units in all similar applications under the same approval number.
' g. x2 I3 U/ D7 ?> Therefore, we would like to be able to configure the units to a specific
9 e* }+ J: G# g c > application. For the business that we do, this approach will yield more
! u& Y% n" N0 p: U > sales based on the same product and approval. We are interested in the
/ \3 t- t! M. S0 ` > following specifications:
/ p" _2 _" A# ?) Z/ v3 }% G>
+ n3 j3 o/ J/ t0 Z h6 k3 a > - 2 inputs at the Transmitter with three possibilities;
" _0 [" J% ^& U M9 N+ a> 2 analog
; n+ k) S( z# {1 J9 @6 @% C> 2 digital
' X$ \9 Z- }( x3 J> 1 analog and 1 digital
1 u- B$ w) `1 Q* R, Z>
2 o: I- g* I) b> - 2 outputs at the Receiver with three possibilities to match inputs
& `- |6 i& y0 r8 [- U3 q: Y6 V >
( v2 n1 v& N4 @4 ?) H ? > - Ability to configure/define analog Transmitter input ranges through
- H. k4 O' C: O7 {* P8 Q> simple programming method to correspond with full-range analog Receiver
0 L0 D y, `* `7 X9 e, b> outputs (0 - full voltage).
4 \4 b" d) U! L5 d) l$ j>
3 ~) R3 q& G4 t# \ > - Ability to configure and set sample rates for the inputs.
( B B5 @8 i# }- s9 e >
3 B0 Y; ~) I, g > - Digital output on Transmitter that turns on during the sampling period.
- z( s' d' m0 t& h >
' M; }9 r. y0 @8 |5 y2 m> - Ability to configure a power saving Sleep Mode in the Transmitter by
5 a3 u' I& d. p* L7 P- F( I. i > both software control and input hardware control.
: b& g1 B0 i1 A$ I. w >
6 C& I4 q" O* a4 P D: U, T: G> In order to configure the units, we would need a way to make the
* L+ X& N6 |3 f, O6 T. G> settings. This would preferably be from a computer terminal so that
; U; x$ ?8 K- E# K/ t5 R. d> configurations can be saved or easily duplicated for production volumes.
( a7 ?! N$ W5 e; E& n4 l0 q > The units should be small and compact with shielding, and able to mount
: L u/ ^* U& T2 [/ |> to a printed circuit board with header connector.
' X; E) k7 c! g# Q7 S >
1 Z5 j9 r5 O% \* E8 d) L > At this time, we are interested in samples of a pair of modems that
4 z& l" W# x4 A, x) T7 n> might be similar to this proposed system. We do not expect that you
9 z$ z4 d8 D* O, h> provide all of these specifications at this time. I can describe our
. t' R9 B; U% o J% i% F > immediate application needs in the next email if this project is of
- \# O; ~2 f% U> interest to you. Perhaps you can make the samples by those
7 A% ?2 }, l" o: D> specifications. This will allow us to test your radios before we move
+ ~0 [, U8 Z7 {( G5 b > forward. We are interested in your 900MHz radio to start.
" g4 K2 U2 _, e
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