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F1241 Datasheet(PDF) 13 Page - Renesas Technology Corp

Part # F1241
Description  Dual IF Digital Variable Gain Amplifier
PDF  21 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

F1241 Datasheet(HTML) 13 Page - Renesas Technology Corp

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Dual IF Digital Variable Gain Amplifier
10 – 500 MHz IDTF1241NBGI
IDT FlatNoise
TM IF VGA
13
Rev O Nov 2012
IDTF1241
DATASHEET
PIN DESCRIPTIONS
Pin #
Pin Name
Pin Function
1
GA3
4 dB ATTN ctrl bit for Channel A
2
GA4
8 dB ATTN ctrl bit for Channel A
3
GA5
16 dB ATTN ctrl bit for Channel A
4
ISET_A
ChA Icc set: Use the recommended value from the BOM section
5
ISET_B
ChB Icc set: Use the recommended value from the BOM section
6
GB5
16 dB Attenuation ctrl bit for Channel B: 1 or high = 16 dB ATTN
7
GB4
8 dB Attenuation ctrl bit for Channel B: 1 or high = 8 dB ATTN
8
GB3
4 dB Attenuation ctrl bit for Channel B: 1 or high = 4 dB ATTN
9
GB2
2 dB Attenuation ctrl bit for Channel B: 1 or high = 2 dB ATTN
10
GB1
1 dB Attenuation ctrl bit for Channel B: 1 or high = 1 dB ATTN
11
IN_B+
Channel B Differential Input +. AC couple
12
IN_B-
Channel B Differential Input -. AC couple
13
GND
Connect this pin to Ground
14
VCC
Connect this pin to the 5V DC Power Bus
15
NC
Internally Unconnected
16
NC
Internally Unconnected
17
OUT_B+
Channel B Differential Output +. Pull up to Vcc through an inductor
18
OUT_B-
Channel B Differential Output-. Pull up to Vcc through an inductor
19
STYB_B
Pull low to Power Down ChB. Float or Pull high to enable ChB
20
GND
Connect this pin to Ground
21
GND
Connect this pin to Ground
22
STYB_A
Pull low to Power Down ChA. Float or Pull high to enable ChA
23
OUT_A-
Channel A Differential Output -. Pull up to Vcc through an inductor
24
OUT_A+
Channel A Differential Output +. Pull up to Vcc through an inductor
25
NC
Internally Unconnected
26
NC
Internally Unconnected
27
VCC
Connect this pin to the 5V DC Power Bus
28
GND
Connect this pin to Ground
29
IN_A-
Channel A Differential Input -. AC couple
30
IN_A+
Channel B Differential Input +. AC couple
31
GA1
1 dB Attenuation ctrl bit for Channel A
32
GA2
2 dB ATTN ctrl bit for Channel A
EP
Exposed Paddle
Connect to Ground with multiple vias for good thermal relief



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