JAJSBE6D May 2010 – December 2016 DS92LV0421 , DS92LV0422
PRODUCTION DATA.
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PIN | TYPE(1) | DESCRIPTION(2) | |
---|---|---|---|
NAME | NO. | ||
CHANNEL LINK PARALLEL INPUT INTERFACE | |||
RXCLKIN+ | 35 | I | True LVDS Clock Input This pair must have a 100-Ω termination for standard LVDS levels. |
RXCLKIN– | 34 | I | Inverting LVDS Clock Input This pair must have a 100-Ω termination for standard LVDS levels. |
RXIN[3:0]+ | 2, 33, 31, 29 |
I | True LVDS Data Input This pair must have a 100-Ω termination for standard LVDS levels. |
RXIN[3:0]– | 1, 32, 30, 28 |
I | Inverting LVDS Data Input This pair must have a 100-Ω termination for standard LVDS levels. |
CHANNEL LINK II SERIAL OUTPUT INTERFACE | |||
DOUT+ | 16 | O | True Output, CML The output must be AC-coupled with a 0.1-µF capacitor. |
DOUT– | 15 | O | Inverting Output, CML The output must be AC-coupled with a 0.1-µF capacitor. |
CONTROL AND CONFIGURATION | |||
CONFIG[1:0] | 10, 9 | I | Operating Modes: Pin or Register Control, LVCMOS with pulldown. Determines the device operating mode and interfacing device (see Table 10). CONFIG[1:0] = 00: Interfacing to DS92LV2422 or DS92LV0422, Control Signal Filter DISABLED CONFIG[1:0] = 01: Interfacing to DS92LV2422 or DS92LV0422, Control Signal Filter ENABLED CONFIG [1:0] = 10: Interfacing to DS90UR124, DS99R124Q-Q1 CONFIG [1:0] = 11: Interfacing to DS90C124 |
DE-EMPH | 19 | I | De-emphasis Control: Pin or Register Control, Analog with pullup. De-emphasis = Open (float) - disabled To enable De-emphasis, tie a resistor from this pin to Ground or control through register (see Table 2). |
MAPSEL | 26 | I | Channel Link Map Select: Pin or Register Control, LVCMOS with pulldown. MAPSEL = 1, MSB on RXIN3± (see Figure 23). MAPSEL = 0, LSB on RXIN3± (see Figure 24). |
PDB | 23 | I | Power-down Mode input, LVCMOS with pulldown. PDB = 1, serializer is enabled (normal operation). See Power Supply Recommendations for more information. PDB = 0, serializer is powered down When the serializer is in the power-down state, the driver outputs (DOUT±) are both logic high, the PLL is shut down, and IDD is minimized. Control Registers are RESET. |
RES[7:0] | 25, 3, 36, 27, 18, 13, 12, 8 | I | Reserved (tie low), LVCMOS with pulldown. |
VODSEL | 20 | I | Differential Driver Output Voltage Select: Pin or Register Control, LVCMOS with pulldown. VODSEL = 1, CML VOD is ±450 mV, 900 mVp-p (typical): long cable or de-emphasis applications VODSEL = 0, CML VOD is ±300 mV, 600 mVp-p (typical): short cable (no de-emphasis), low power mode |
OPTIONAL BIST MODE | |||
BISTEN | 21 | I | BIST Mode: Optional, LVCMOS with pulldown. BISTEN = 1, BIST is enabled BISTEN = 0, BIST is disabled (normal operation) |
OPTIONAL SERIAL BUS CONTROL | |||
ID[X] | 4 | I | Serial Control Bus Device ID Address Select: Optional, Analog Resistor to Ground and 10-kΩ pullup to 1.8-V rail (see Table 8). |
SCL | 6 | I | Serial Control Bus Clock Input: Optional, LVCMOS (open-drain) SCL requires an external pullup resistor to VDDIO. |
SDA | 7 | I/O | Serial Control Bus Data Input or Output: Optional, LVCMOS (open-drain) SDA requires an external pullup resistor VDDIO. |
POWER AND GROUND(3) | |||
DAP | GND | G | DAP is the large metal contact at the bottom side, located at the center of the WQFN package. Connect to the ground plane (GND) with at least 9 vias. |
VDDHS | 14 | P | TX high-speed logic power, 1.8 V ±5% |
VDDIO | 22 | P | LVCMOS I/O power and Channel Link I/O power, 1.8 V ±5% or 3.3 V ±10% |
VDDL | 5 | P | Logic power, 1.8 V ±5% |
VDDP | 11 | P | PLL power, 1.8 V ±5% |
VDDRX | 24 | P | RX power, 1.8 V ±5% |
VDDTX | 17 | P | Output driver power, 1.8 V ±5% |
PIN | TYPE(1) | DESCRIPTION(2) | |
---|---|---|---|
NAME | NO. | ||
CHANNEL LINK II SERIAL INPUT INTERFACE | |||
CMF | 42 | I | Common-mode filter, Analog VCM center-tap is a virtual Ground which may be AC-coupled to Ground to increase receiver common mode noise immunity. Recommended value is 4.7 µF or higher. |
RIN+ | 40 | I | True Input, CML The output must be AC-coupled with a 0.1-µF capacitor. |
RIN– | 41 | I | Inverting Input, CML The output must be AC-coupled with a 0.1-µF capacitor. |
CHANNEL LINK PARALLEL OUTPUT INTERFACE | |||
TXCLKOUT+ | 17 | O | True LVDS Clock Output This pair must have a 100-Ω termination for standard LVDS levels. |
TXCLKOUT– | 18 | O | Inverting LVDS Clock Output This pair must have a 100-Ω termination for standard LVDS levels. |
TXOUT[3:0]+ | 15, 19, 21, 23 |
O | True LVDS Data Output This pair must have a 100-Ω termination for standard LVDS levels. |
TXOUT[3:0]– | 16, 20, 22, 24 |
O | Inverting LVDS Data Output This pair must have a 100-Ω termination for standard LVDS levels. |
LVCMOS OUTPUTS | |||
LOCK | 27 | O | LOCK Status Output, LVCMOS LOCK = 1, PLL is locked, output stated determined by OEN. LOCK = 0, PLL is unlocked, output states determined by OSS_SEL and OEN. See Table 7. |
CONTROL AND CONFIGURATION | |||
CONFIG[1:0] | 11, 10 | I | Operating Modes: Pin or Limited Register Control, LVCMOS with pulldown. Determine the device operating mode and interfacing device. (see Table 10). CONFIG[1:0] = 00: Interfacing to DS92LV2421 or DS92LV0421, Control Signal Filter DISABLED CONFIG[1:0] = 01: Interfacing to DS92LV2421 or DS92LV0421, Control Signal Filter ENABLED CONFIG [1:0] = 10: Interfacing to DS90UR241, DS99R421 CONFIG [1:0] = 11: Interfacing to DS90C124 |
LFMODE | 36 | I | SSCG Low Frequency Mode: Pin or Register Control, LVCMOS with pulldown. LFMODE = 1, low frequency mode (TXCLKOUT = 10–20 MHz) LFMODE = 0, high frequency mode (TXCLKOUT = 20–65 MHz) SSCG not available above 65 MHz. |
MAPSEL | 34 | I | Channel Link Map Select: Pin or Register Control, LVCMOS with pulldown. MAPSEL = 1, MSB on TXOUT3± (see Figure 23). MAPSEL = 0, LSB on TXOUT3± (see Figure 24). |
OEN | 30 | I | Output Enable, LVCMOS with pulldown. See Table 7 for details. |
OSS_SEL | 35 | I | Output Sleep State Select Input, LVCMOS with pulldown. See Table 7 for details. |
PDB | 1 | I | Power-down Mode Input, LVCMOS with pulldown. PDB = 1, deserializer is enabled (normal operation). See Power Supply Recommendations for more information. PDB = 0, deserializer is powered down. When the deserializer is in the power-down state, the driver outputs (TXOUT±) are in TRI-STATE. Control Registers are RESET. |
RES | 37 | I | Reserved (tie low), LVCMOS with pulldown. |
SSC[2:0] | 7, 3, 2 | I | Spread Spectrum Clock Generation (SSCG) Range Select, LVCMOS with pulldown. See Table 5 and Table 6. |
VODSEL | 33 | I | Parallel LVDS Driver Output Voltage Select: Pin or Register Control, LVCMOS with pulldown. VODSEL = 1, LVDS VOD is ±400 mV, 800 mVp-p (typical) VODSEL = 0, LVDS VOD is ±250 mV, 500 mVp-p (typical) |
CONTROL AND CONFIGURATION — STRAP PIN | |||
EQ | 28 [PASS] | I | EQ Gain Control of Channel Link II Serial Input, STRAP, LVCMOS with pulldown EQ = 1, EQ gain is enabled (~13 dB) EQ = 0, EQ gain is disabled (~1.625 dB) |
OPTIONAL BIST MODE | |||
BISTEN | 29 | I | BIST Mode: Optional, LVCMOS with pulldown. BISTEN = 1, BIST is enabled BISTEN = 0, BIST is disabled |
PASS | 28 | O | PASS Output (BIST Mode): Optional, LVCMOS PASS =1, no errors detected PASS = 0, errors detected Leave open if unused. Route to a test point (pad) recommended. |
OPTIONAL SERIAL BUS CONTROL | |||
ID[X] | 12 | I | Serial Control Bus Device ID Address Select: Optional, Analog Resistor to Ground and 10-kΩ pullup to 1.8-V rail (see Table 8). |
SCL | 5 | I | Serial Control Bus Clock Input: Optional, LVCMOS (open drain) SCL requires an external pullup resistor to 3.3 V. |
SDA | 4 | I/O | Serial Control Bus Data Input or Output: Optional, LVCMOS (open drain) SDA requires an external pullup resistor 3.3 V. |
POWER AND GROUND(3) | |||
DAP | DAP | G | DAP is the large metal contact at the bottom side, located at the center of the WQFN package. Connect to the ground plane (GND) with at least 9 vias. |
GND | 9, 14, 26, 32, 39, 44, 45, 48 | G | Ground |
VDDA | 38, 43 | P | Analog power, 1.8 V ±5% |
VDDIO | 25 | P | LVCMOS I/O power and Channel Link I/O power, 1.8 V ± 5% or 3.3 V ±10% |
VDDL | 6, 31 | P | Logic power, 1.8 V ±5% |
VDDP | 8 | P | PLL power, 1.8 V ±5% |
VDDSC | 46, 47 | P | SSCG power, 1.8 V ±5% |
VDDTX | 13 | P | Channel Link LVDS parallel output power, 3.3 V ±10% |