SA630D/01,112 NXP Semiconductors, SA630D/01,112 Datasheet - Page 6

• Manufacturer Part Number: SA630D/01,112
• Description: IC RF SWITCH SPDT 8-SOIC
• Manufacturer: NXP Semiconductors

Specifications of SA630D/01,112

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Rf Type: General Purpose
• Frequency: 1GHz
• Features: SPDT
• Insertion Loss: 1 dB
• Maximum Operating Temperature: + 85 C
• Maximum Power Dissipation: 780 mW
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Switches: Single
• Off Isolation (typ): 68 dB
• Operating Frequency: 1 GHz
• Supply Current: 170 uA
• Supply Voltage (max): + 5.5 V
• Supply Voltage (min): - 0.5 V
• Switch Configuration: SPDT
• Pin Count: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-1206-5; 935277468112; SA630D; SA630D/01

Philips Semiconductors
The isolation and matching of the two channels over frequency is
shown in Figures 15 and 17, respectively.
The SA630 is a very versatile part and can be used in many
applications. Figure 5 shows a block diagram of a typical Digital RF
transceiver front-end. In this application the SA630 replaces the
duplexer which is typically very bulky and lossy. Due to the low
power consumption of the device, it is ideally suited for handheld
applications such as in CT2 cordless telephones. The SA630 can
also be used to generate Amplitude Shift Keying (ASK) or On-Off
Keying (OOK) and Frequency Shift Keying (FSK) signals for digital
RF communications systems. Block diagrams for these applications
are shown in Figures 6 and 7, respectively.
For applications that require a higher isolation at 1GHz than
obtained from a single SA630, several SA630s can be cascaded as
1997 Nov 07
Single pole double throw (SPDT) switch
Figure 6. Amplitude Shift Keying (ASK) Generator
Figure 7. Frequency Shift Keying (FSK) Gnerator
OSCILLATOR
f
f
1
2
TTL DATA
630
TTL DATA
ENABLE
Figure 5. A Typical TDMA/Digital RF Transceiver System Front-End
630
CH1
ENABLE
630
CH1
Tx/Rx
ASK OUTPUT
FSK OUTPUT
50
5200
5200
SR00583
SR00584
6
602A
VCO
shown in Figure 8. The cascaded configuration will have a higher
loss but greater than 35dB of isolation at 1GHz and greater than
65dB @ 500MHz can be obtained from this configuration. By
modifying the enable control, an RF multiplexer/ de-multiplexer or
antenna selector can be constructed. The simplicity of SA630
coupled with its ease of use and high performance lends itself to
many innovative applications.
The SA630 switch terminates the OFF channel in 50 . The 50
resistor is internal and is in series with the external AC bypass
capacitor. Matching to impedances other than 50 can be achieved
by adding a resistor in series with the AC bypass capacitor (e.g.,
25 additional to match to a 75 environment).
MODULATION
IF OUT
CONTROLLER
IN/OUT
MICRO
ENABLE
630
Figure 8.
KEYPAD
DISPLAY
&
630
630
OUT1/IN1
OUT2/IN2
Product specification
SA630
SR00582
SR00585