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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

& z; r" l' I9 j, ` w U客户要求如下,如果哪家工厂可以做,请和我联系
5 A" y( f) O6 S2 O) i> The application that we have in mind is similar to others that we commonly
! z4 {7 M3 ?) i7 X1 U/ O. Q> have. If we were to pay for FCC approval, we would want to use the modem
4 ]/ A- `$ ]: {. d$ ~9 ?> units in all similar applications under the same approval number.
5 N: {$ U; R6 G1 U' U> Therefore, we would like to be able to configure the units to a specific
: Q4 d9 `) i' ` o4 |3 W' H > application. For the business that we do, this approach will yield more
; o" h* g; o3 I) \7 s7 u; O! h> sales based on the same product and approval. We are interested in the
7 M8 S: W7 U3 l: T! W- N > following specifications:
* R! \' r' T/ {% ^>
6 C- o( Q1 y8 h7 a D > - 2 inputs at the Transmitter with three possibilities;
8 N2 U1 f" }8 E > 2 analog
/ r( I" p; [3 A3 @" Q> 2 digital
9 g/ k8 S; H" `2 C" `> 1 analog and 1 digital
* s9 Y2 S) y1 S6 o>
, V( L' a& r. F( ^> - 2 outputs at the Receiver with three possibilities to match inputs
0 a7 m, K- P' I: o, f6 Z9 o: N >
* ]$ p% I0 |# O4 e# Y C > - Ability to configure/define analog Transmitter input ranges through
6 D# K. S$ L: h* b& ]& V > simple programming method to correspond with full-range analog Receiver
+ e! K4 b. L# B+ h5 I, F# ? > outputs (0 - full voltage).
# y* W6 Z: f! a>
, U9 h. m8 s) }" X$ g: {> - Ability to configure and set sample rates for the inputs.
/ p2 W" O, t5 C; o# R>
9 E* O$ C3 g' ]0 P> - Digital output on Transmitter that turns on during the sampling period.
( y5 y% U, ]" k5 J; |( H, z) o>
) q: ~* `7 N, W. H# P4 Z* G/ y. j& n# y4 ]> - Ability to configure a power saving Sleep Mode in the Transmitter by
7 ]2 q1 C/ B E+ {7 J( k7 V5 v > both software control and input hardware control.
# u6 O+ E/ ~& \9 g' e# ~5 w >
$ T4 ] w1 D- c- L1 n > In order to configure the units, we would need a way to make the
! L& ~6 s0 ~4 T3 t! U! `4 f > settings. This would preferably be from a computer terminal so that
; W" H- _4 G! t > configurations can be saved or easily duplicated for production volumes.
7 a0 E4 Q- }. O > The units should be small and compact with shielding, and able to mount
( J1 P' w# O0 I' M* Y+ P > to a printed circuit board with header connector.
( b1 e# g3 V# H >
" _( m `& y; J2 k; s) d> At this time, we are interested in samples of a pair of modems that
H- S+ E, c5 C* j7 `' J. G; D > might be similar to this proposed system. We do not expect that you
7 m% j7 J9 X/ _) Y7 h8 a6 V > provide all of these specifications at this time. I can describe our
j5 c: o6 {# w. f* @> immediate application needs in the next email if this project is of
; c- A, t2 u3 x+ J) C$ c5 o4 k6 f > interest to you. Perhaps you can make the samples by those
: ^2 d& F n7 U- p > specifications. This will allow us to test your radios before we move
" ?: p, z) @( B > forward. We are interested in your 900MHz radio to start.
- ^5 j0 b9 P& C* E9 k( e
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