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1. description：
the isdb-t one-seg radio module is suitable for isdb-t digital radio audio system with am/fm. it is
full compliant with isdb-t one-seg japan（arib）and brazil standard.
2. features:
high sensitivity;
slim & small size: 28(l) x 20(w) x 5.0(t) mm;
modulation is qpsk;
audio decoder support mpeg 1/2，aac;
audio output support analog stereo r/l ;
support uart and i2c control interface;
ultra-low power consumption, one seg radio module < 200mw
3. specifications:
parameter condition min typical max unit
uhf-band(1-seg)
rf frequency range for japan 470 770 mhz
for brazil 470 806 mhz
input impedance( pad/ ipex) antenna connection points 50 ω
band width 6 mhz
rf sensitivity
473.143mhz
measurement to isdb-t
one seg, cr2/3
-98 -99 -100 dbm
623.143mhz -98 -99 -100 dbm
767.143mhz -98 -99 -100 dbm
(s+n)/n -70 db
thd deviation 1khz 0.2 %
audio decoder mpeg 1/2，aac+
audio-output level analog stereo right/left 1000 mv
separation(r/l、l/r) 52 db
maximum output level rms 1 v
frequency response 20hz~~20khz ±3 db
power supply range
i/o: 1.8~~3.3vdc 1.75 1.8 1.85 v
3.25 3.3 3.4
core: 1.2vdc 1.18 1.20 1.25 v
module total power consumption 160 190 200 mw
uart baud rate module default is 9600 9600 9600 115200 bps
operating temperature range -20 +25 +60 ℃
humidity
operating 80％
storage 90％
module size 28(l) x 20(w) x 5.0(t) mm
cn3 : defaut cn3 feature is not,module is widbt-c102ming module is widbtc103mote:
n3 : defaut cn3 feature is not,module is widbt-c102m
4. block diagram
5. wdbt-c109m module pcba (top view)
6. module pcba dimension and pin description:
cn1 (right side)
pin no. pin pin description
1 rf_in isdb-t signals input, 50 ohms
2 gnd ground
3 gnd ground
4 gnd ground
5 vdd3v3 power in ,module i/o power: 1.8~~3.3v
6 gnd ground
7 hpoutl isdb-t left audio output, can driver headphone
8 hpoutl isdb-t right audio output, can driver headphone
cn2 (left side)
pin no. name description
9 1v8 power in ,module i/o power: 1.8~~3.3v
10 gnd ground
11 1v2 module core power: 1.2v
12 resetb reset pin, low is active
13 msda i2c data
4 mscl i2c clk
15 gnd ground
16 uart rx uart rxd,
17 uart_tx uart txd
7. communication protocol (uart protocol)
communication between isdb-t radio module with external mcu by the uart port or i 2 c port,
detailed uart communication protocol reference another file (“isdb-t 1seg audio module command
protocol&command”)。
8. reliability test
no.
item test conditions specifications
1 high temperature with load test +60°c, 48 hours power on
gain variation: < ± 3db
2 low temperature test -20°c, 48 hours power on
3 humidity & temperature with
load test
+40° c ,95%rh, 48 hours power on
4 life test
work about 240 hours, with standard
power supply, measurements in standard
test condition.
5 esd protection
1) observe esd protection measures.
2) ground yourself before handling the
module.
3) do not touch the module connector
pins without esd prot
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深圳市佳诚利达科技有限公司
宋卫恒
18938680918
深圳市宝安区深圳市龙华东环一路锦恒工业园B区