MAXIM MAX1007 Technical data

________________General Description
The MAX1007 is a multifunctional integrated circuit designed for high-performance mobile radios. It includes one 8-bit analog-to-digital converter (ADC), and two 7-bit and two 6-bit digital-to-analog converters (DACs) for functions including radio-frequency (RF) power sensing and antenna-diversity selection.
Four DAC blocks typically control DC levels in radios. As part of the Maxim PWT1900 chip set, the two 7-bit DACs control the gain settings and the two 6-bit DACs control the varactor diodes to tune a TCXO and bias a GaAs amplifier. Each DAC register and output can be updated independently, providing maximum flexibility.
For antenna diversity, a magnitude-comparison circuit captures and compares two peak signals. A latched logic-comparator output reveals which signal has the largest magnitude. The MAX1007 also includes an on­board voltage reference for the ADC and DACs.
The MAX1007 offers a high level of signal integrity with minimal power dissipation. Single-supply operation ranges from +2.85V to +3.6V. To further save power, there are two shutdown modes: standby and total shutdown. Standby is a partial shutdown that keeps the bandgap reference and the 2.4V reference generator active. Total shutdown disables all circuit blocks except the serial interface, reducing supply current to less than 1µA.
The MAX1007 is available in a 24-pin SSOP and is specified for commercial and extended temperature ranges.
________________________Applications
PWT1900 Wireless Communications:
Cellular Radios PMR/SMR PCS Radios WLL
____________________________Features
Multi-Input 8-Bit ADCTwo 7-Bit DACs with Buffered OutputsTwo 6-Bit DACs: Buffered/UnbufferedPower-Sense Conditioning CircuitryRSSI MeasurementAntenna-Diversity CircuitryInternal ReferenceSerial-Logic Interface+2.85V to +3.6V Single-Supply OperationTwo Shutdown Modes
MAX1007
Mobile-Radio Analog Controller
________________________________________________________________
Maxim Integrated Products
1
19-1180; Rev 0; 6/98
PART
MAX1007CAG MAX1007EAG -40°C to +85°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
24 SSOP 24 SSOP
Ordering Information
Pin Configuration appears at end of data sheet.
CS SCLK DIN
7
DOUT
SDAC
CH0
ADC
PEAK
DETECTOR
POWER
SENSE
RPS
RSSI
FPS1 FPS2
SDAC
XDAC
SDG
GDAC
KDAC
CH1
REFERENCE
PSBIAS
SERIAL
INTERFACE
PSDCTRL
PREAMBLE-SWITCHED DIVERSITY
POWER SENSE CIRCUITRY
PSDWDW
DUAL
T/H
VREF
XDAC
GDAC
KDAC
REF
PSOUT
BANT
ADC CTRL
PKWDW
6
6
7
D FLIP-FLOP
MAX1007
Functional Diagram
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468.
查询MAX1007供应商
MAX1007
Mobile-Radio Analog Controller
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AVDD= DVDD= +2.85V to +3.6V, f
SCLK
= 1.152MHz, TA= T
MIN
to T
MAX
, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
AVDDor DVDDto AGND or DGND...........................-0.3V to +6V
Digital Inputs to DGND.............................................-0.3V to +6V
Analog Inputs to AGND............................................-0.3V to +6V
REF to AGND............................................................-0.3V to +6V
AGND to DGND.................................................................± 0.3V
AV
DD
to DVDD....................................................................± 0.3V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T
A
= +70°C)
SSOP (derate 8.0mW/°C above +70°C) ......................640mW
Operating Temperature Ranges
MAX1007CAG.....................................................0°C to +70°C
MAX1007EAG..................................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
AVDD, DV
DD
RxEN = 1, TxEN = 1; AVDD= DVDD= 3V
RxEN = 1, TxEN = 0; AVDD= DVDD= 3V; PKWDW and ADCCTRL as per state B on Figure 1
RxEN = 1, TxEN = 0; AVDD= DVDD= 3V; PKWDW = ADCCTRL = DGND
RxEN = 1, TxEN = 0; AVDD= DVDD= 3V; PKWDW and ADCCTRL as per state B on Figure 1. PSDWDW and PSD­CNTRL as per state D on Figure 2
RxEN = 0, TxEN = 1; AVDD= DVDD= 3V; PKWDW = ADCCTRL = DGND
RxEN = 0, TxEN = 1; AVDD= DVDD= 3V; PKWDW and ADCCTRL as per state B on Figure 1
RxEN = 1, TxEN = 0; AVDD= DVDD= 3V; PKWDW and ADCCTRL as per state C on Figure 1
RxEN = 0, TxEN = 1; AVDD= DVDD= 3V; PKWDW and ADCCTRL as per state C on Figure 1
CONDITIONS
mA1.24 3.5
Standby:
XDAC, GDAC, Ref, RefBuf Active
mA4.07 10.5
Receive Mode 4:
KDAC, XDAC, ADC, RSSI Buffer, Ref, RefBuf, PSD Circuit Active
mA11.2 31
Receive Mode 3:
KDAC, XDAC, ADC, Peak Detector RSSI Buffer, Ref, RefBuf Active
V2.85 3.0 3.6Supply Voltages
mA2.95
Receive Mode 2:
KDAC, XDAC, Peak Detector, RSSI Buffer, Ref, RefBuf Active
mA1.24 3.5
Receive Mode 1:
KDAC, XDAC, Ref, RefBuf Active
mA1.8 5.0
Transmit Mode 1:
All DACs, Ref, RefBuf Active
mA4.7
Transmit Mode 2:
All DACs, PGA, REF, Peak Detector, PSBIAS, I
SOURCE
,
RefBuf Active
mA12.2 32
Transmit Mode 3:
All DACs, PGA, REF, Peak Detector, PSBIAS, I
SOURCE
,
RefBuf, ADC Active
UNITSMIN TYP MAXPARAMETER
RxEN = 0, TxEN = 0; AVDD= DVDD= 3V; ADCCTRL = PSDCTRL = PKWDW = PSDWDW = DGND; SCLK not active, either high or low
µA1 10Total Shutdown
POWER-SUPPLY REQUIREMENTS
SUPPLY CURRENTS [I(AVDD) + I(DVDD)] (Note 1)
MAX1007
Mobile-Radio Analog Controller
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(AVDD= DVDD= +2.85V to +3.6V, f
SCLK
= 1.152MHz, TA= T
MIN
to T
MAX
, unless otherwise noted.)
(Note 2)
2 < code FS
2 < code FS
2 < code FS
CL= 30pF, RL= 40k, settling to 5% of final value
RL= 40k
2 < code FS
(Note 2)
2 < code FS
(Note 2)
CL= 30pF, RL= 40k
No resistive load
2 < code FS
CONDITIONS
%FSR±10Gain Error
LSB±1Offset Error
LSB±1Integral Nonlinearity
LSB±1Differential Nonlinearity
Bits7Resolution
µs4Full-Scale Step Response Time
V2.1 2.42 2.75Full-Scale Output Swing
V/µs0.1Output Slew Rate
%FSR±10Gain Error
LSB±1Offset Error
LSB±1Integral Nonlinearity
LSB±1Differential Nonlinearity
Bits6Resolution
LSB±1Differential Nonlinearity
Bits6Resolution
k30Output Resistance
LSB±1/2Integral Nonlinearity LSB±1Offset Error
%FSR±10Gain Error
V2.1 2.42 2.75Full-Scale Output Swing
UNITSMIN TYP MAXPARAMETER
CL= 30pF, RL= 40k, settling to 2% of final value
RL= 40k
CL= 30pF, RL= 40k
µs4Full-Scale Step Response Time
V2.1 2.42 2.75Full-Scale Output Swing
V/µs0.1Output Slew Rate
CL= 30pF, RL= 40k, settling to within 2% of final value µs4Power-Up Time from Standby
With respect to V
REF
V
REF
= 1.028V (typ)
V
REF
= 1.028V (typ)
LSB±5Gain Error
LSB±2Offset Error
µs5.2Conversion Time
LSB±1Integral Nonlinearity
LSB±1Differential Nonlinearity
V0 V
REF
Input Signal Range
Bits8Resolution
µs1.74
ADC Power-Up Time from Standby
V1.028Reference Voltage
XDAC
GDAC
SDAC, KDAC
ADC
MAX1007
Mobile-Radio Analog Controller
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(AVDD= DVDD= +2.85V to +3.6V, f
SCLK
= 1.152MHz, TA= T
MIN
to T
MAX
, unless otherwise noted.)
V
IL
V
IH
SYMBOL
V0.3V
DD
Input Voltage Low
V0.7V
DD
Input Voltage High
V2.42Internal DAC Reference
µA200PS Bias Sink Current
V1.87PS Bias Voltage Output
V0.96 1.028 1.1Output Voltage
mV100 300Minimum Peak Level Detected
µs10 20Lowpass-Filter Time Constant
200Pull-Down Input Resistance
µA50 100 180Current Source
-0.44
-6
VV
REF
Maximum Peak Level Detected
mV150Offset Voltage
V/V
-0.53
Power-Sense Amp Gain (PGA)
UNITSMIN TYP MAXPARAMETER
C
IN
R
IN
I
IN
pF10Inpt Capacitance
k20Input Resistance
µA±1Input Current
t
8
t
7
t
6
t
5
t
4
t
3
t
2
t
1
ns100
CS High to DOUT Disable
ns200 434SCLK Pulse Width Low
ns200 434SCLK Pulse Width High
ns150SCLK High to DOUT Valid
ns100
CS Low to DOUT Valid
ns20
CS Low to SCLKHigh
ns0DIN to SCLK Hold
ns100DIN Valid to SCLK Setup
t
9
ns500
ADC Data Output Delay After End of ADC Conversion (Figure 4b)
V
OL
V
OH
V0.4Output Voltage Low
VVDD- 0.4Output Voltage High
CL= 20pF, RL= 100k
RSin series with CL, CL= 1nF, 200Ω ≤ RS≤ 1kΩ
RPS, FPS1, FPS2 pulled to AGND when not selected
Figure 3b
RSin series with CL, CL= 1nF, 200Ω ≤ RS≤ 1kΩ
Reflected transmit, classes 2, 3, 4
Reflected transmit, class 1
RPS, FPS1, FPS2 to ADC input Forward transmit
CONDITIONS
CL= 20pF, RL= 100k
Digital inputs
PSDCTRL, PSDWDW
Excluding PSDCTRL, PSDWDW
CL= 20pF
Digital Outputs (DOUT, BANT, SDG)
TIMING SPECIFICATIONS (Figure 4)
Digital Inputs (CS, SCLK, DIN, PKWDW, ADCCTRL, PSDWDW, PSDCTRL)
SERIAL-LOGIC INTERFACE
REFERENCE
TRANSMIT POWER SENSE
RSSI CIRCUIT
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